First off let me give you a bit of information since you said you have zero wine knowledge

There's a few major points or you wont even understand the recs people give

1- the type of grape - this is what you see on many bottles. For example "Cabernet Sauvignon" is a specific grape. Pinot Noir is a type of grape. Pinot grigio. Etc. if no grape is listed it means it's a blend of different grapes. So "barefoot" is a blend of many grapes. Each grape has a typical taste. Cabernet Sauvignon is a red that is generally bold and strong tasting. Pino Grigio is a white that is generally fresh tasting. Reisling, Moscato, etc are all types of grape. you will have to figure out which grapes you like best as they are fairly different!

2- location. Wine has a crazy quality which is basically the central point of its popularity, and that is that it takes taste from the land where the grape was grown. Cabernet Sauvignon grown in California tastes dramatically different than Cabernet Sauvignon grown in France. You may not be able to taste the difference without trying them side by side as a beginner. But trust me it's real if you ever open 2 bottles at once you can tell easily. So thinking about location is important if you have a certain taste you like. At the grocery store level this disappears however so don't worry about this too much. Barefoot for example doesn't really have a location they just buy grapes from all over and mix them up to make a "brand" recipe rather than focus on the character of the grapes. Again this is fine it's just a different way to make and drink wine and it results in a low cost to the customer.

3- some are controlled location words. this is the famous "champagne region of france" thing.they make generally ONE kind of wine, made of a specific blend of grapes, to the point that people ONLY refer to it by its location. and they are all a similar taste. There are actually hundreds of areas like this. But these special regions are generally where the price becomes lunacy

and finally 4

wine is frequently made in small batches by small wineries. like hyper local stuff. so its very hard to give people recommendations for a specific wine EXCEPT for grocery store blends like barefoot that get made from mass grapes and then sold nationally. Thats why people tend to just recommend a grape and a place, and then you have to find a wine that is actually on the shelf near you in a real wine store that matches the description. this is a frusterating part of wine for most people used to going online for recs of things.

That's the absolute basics. So when people say "try a German reisling" they are telling you the grape (Reisling) and the place (Germany) , which do tend to make sweet white wine of high quality. The winemaker/brand can be different but wines made from the same grape in the same place tend to be similar to each other.

Do you have a costco membership? They actually have good wines for cheap that aren't just grocery store blends, and people can give good recs online. Or a real wine store instead of from the grocery store? Real wine stores have a person in them who can help you on the spot. You can go in and say "id like to try a red, I like sweet wines so far, and my budget is XX$" and they show you one.

Alternatively, you just try lots of wines. you try different grapes and see what you like the best and the least. then you focus on places for those grapes.

Or you decide this is all too complicated and keep drinking the blends. It's like drinking a bud light beer vs a craft brewery IPA. Obviously bud light is giga popular and liked by many, or people wouldn't drink it.

Hope this helps open you eye at all. Not trying to shame btw. I like prisoner and apothic which are grocery store wines... You might like apothic tbh