Confused about linux as always

So, I was told you can take any distro, pair it with any desktop environment, and badda bing, badda boom, unique linux in the room!

And a few years ago I tried getting into linux, and it didn't work. I didn't like ubuntu. I want something that's basically like Windows 98.

Closest thing I found was TwisterOS. Well, I had some issue with one program, and I'm an idiot on linux. Have no clue what I'm doing. So the guides tell me to update the thing. So I do that, and the fan in my case stops working. Aye-yi-yi!

I never got it to start working again, and I just said screw it, I'm not dealing with this. Put it in a drawer, and haven't touched it in about a year.

Well, now I'm think I'll just start fresh. Install a new distro, and since Ubuntu seems to be the one with the most support, I'll use that. Then I find out that LXDE visually is more in line with what I want.

So I figure I'll slap on ubuntu, slap on LXDE, and then install retropie. And hopefully the fan will work again. So I start researching this LXDE, and the home page wants you to download the desktop environment already baked into a DIFFERENT distro! Wait, hold on. Am I wrong in thinging you can just download a desktop environment, and slap it on any distro? Because it might be me. I have no clue what I'm doing. And even though this is lemmy, when I searched for "Ubuntu Help", there's no community named that. There's also no community named "Linux help". Which I find very very odd. Lemmy of all places you'd think would have a linux help community! This place loves linux. Does everyone just always know what they're doing at all all times? Or am I just going crazy? I feel like I'm walking blind into a forest and bear traps line the ground. I have no idea how to even start this process....