Linux Mint Debian Edition is what I’m using on my Mac Mini. Before that it was the Ubuntu Linux Mint.
I have a 2015 MacBook Pro they was running opensuse Leap but it won’t boot or charge now. I need to take it to an Apple repair shop for troubleshooting.
If I were looking for a new laptop I’d look at some of the recent ThinkPad’s like the X1. Or I’d like for a good deal on a new AMD Ryzen 5 or 7 equipped laptop .
But if you’re just going to watch YouTube, you could easily get a Celeron based 13 inch laptop from the past 2 years and is should work fine for that.