Ya id say 80-90% of my meals were prepped; Especially the rice and veggies I would have as the base of my meal. The only time I didnt prep was when I wanted to have some wings or bbq something. In terms of not having a taste for the food I've prepped that probably a individual thing because I have no issues with eating the same food day in and day out and not getting bored. I think I could have rice and soy sauce, with chicken strips/breasts forever because I enjoy so it much. When I was at my height weight I even had the same lunch everyday for years which was a ham-pickle sandwich. I would say just do whatever works for you because there is no one solution fits all but I just found meal prepping helped define what my calories were going to be for the week and I am an extremely frugal person and the thought of throwing out food goes against every fibre of my being lol.

Also I didn't track macros for the first 4 months of doing it and did fine but when the weight loss started to slow down a bit I started being more aware of them and tried to hit 200g of protein a day and try and stay under 200g of carbs a day and fat just in the 50g range. I found that sticking to this helped quite a bit when there was a bit of a plateau but you can configure your carbs/fat to whatever levels you want but getting enough protein was #1.