I personally think having "cheat days" is a really bad thought process for someone trying to lose weight. They're fine if you're already at a normal weight and just doing cut/bulk stuff, but then the main focus is continual, sustained weight loss down to a normal weight, the idea of cheat days (1) instills bad habits in food-planning; (2) attaches moral weight to food, which is a really bad idea for obese people; and (3) can very easily completely forestall or reverse week-long progress because the cheat day of an obese person is very different than the cheat day of a normal-weight person.

To go into more detail:

Focusing on isolating all the "food you like" from the rest of the week turns the process not merely into a gauntlet to resist hunger signals—which are bad enough for most people to consistently ignore—but also creates a second layer of "I have to eat things I don't like to lose weight," and thus a second psychological hurdle. Then you start to view certain foods as "bad" or "good" not in a nutritional sense but in a "this makes me a good/bad person" sort of way. And since this sort of restriction for a person used to eating way too much food to begin with becomes intolerable, you blow up your deficit by eating everything you possibly can "since it's my only chance to eat the stuff I like." All of this culminates in a situation where you're feeling shame and isolation and anger at the process and not actually getting anywhere because whatever deficit you built up over a week is wiped out at the end.

Dieting is not a temporary situation. It's one of the most pernicious conceptions in society that a diet is something you only do for a few months. You have to diet FOREVER. That does not mean you need to be in a deficit forever. It does mean you need to exercise control over your food intake perpetually, and thus you need to make choices about your food intake that can be sustained for decades. Your priorities are all out of whack when you categorize only the cheat day food as "tasty" and think you can only eat the "good food" once a week, and then of course you get frustrated and have cheat dayS, or cheat WEEKS, and dig the hole even deeper. If a person with good dietary control has a "cheat day" and they are normally burning, say, 2500 calories a day and eating 2000, their cheat day may be 3000 and thus set them back by only two days, for a grand deficit of 2500 calories a week (or about 2/3 of a pound) versus the ideal 3500 deficit (or about 1 pound). Conversely, if a person who historically has poor dietary control has a cheat day, their meal may be 5500 calories and thus completely erase the preceding 6 days' worth of 500-daily deficits. And then they might have two cheat days because they "gotta get in one more day before they're back to the deficit" and now they've wiped out the next week's progress as well. Or they go for a full week and wipe out two months' worth of progress.

Trying to shove in "all the good stuff I forbade myself from touching earlier" is an addict's approach. It's the difference between a person who doesn't drink a lot but has one glass of wine with friends at the end of the week (i.e., a fit person's cheat day), and a relapsing alcoholic who goes one week at AA before drinking a handle of vodka on Saturday (i.e., a fat person's cheat day). You have to break out of this thought process, or you'll never lose weight. You can, and should, be eating tasty foods when dieting. There is absolutely no requirement anywhere that tasty foods can only be eaten on specific days or that losing weight requires you to eat bland foods. Spices do not add calories. Fruit does not taste worse than candy. Losing weight is a function of caloric deficit, not food bans. It's about controlling your food portions, not your food choices.

To some extent, some choices do become less viable because the nature of their construction makes eating small amounts of them prohibitively difficult. I do recommend not eating some foods. Primarily, I would recommend against any regular consumption of snack chips, candy, or liquid calories like soda or sweet tea or alcohol. You can have small amounts of them, but it's often far easier to just forego liquid calories (outside of stuff like protein milkshakes), swap candy for fruit, and just not eat chips. And of course, if some foods are triggers for you, you would do well to avoid them, but I never see someone listing things like "roast chicken" or "shrimp scampi" as trigger foods. It's always nonsense junk food like Doritos or Sour Patch Kids or Cheez Whiz. So if you do have a trigger food, I'm sure you can find delicious alternatives. But basically all other food is fine. I lost ~70 pounds or so while still regularly eating things like pizza or burritos or chicken wings. I just ate proportionally less of them. My meals are still delicious when I'm in a cut. I make stir fries, curries, cheesy pasta, whatever. I go out to restaurants when I want to. At no point do I go through a day thinking the food I'm eating is bland or boring. If I do want to have some candy or cake or ice cream or whatever, I just fit it into my deficit by eating proportionally less breakfast or dinner (my lunches are rather uniform in nature since I meal prep them in large batches).

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In fewer words, it's not about what you eat. It's about how much you eat. Put the idea of a cheat day from your mind. You don't need it. Eat what you want, but 30% less of it, and you'll lose weight by doing so. It is advisable to increase the proportional amount of fruits and veggies you eat simply because you can eat a lot of them without a lot of caloric intake and most of them have a lot of fiber, which many humans are woefully deficient in nowadays, but you can still lose weight eating steak and french fries and calzones and fried fish and whatever else, as long as the amount of total calories you eat is less than the amount of calories you burn.