I typically only watch YouTube videos on the computer, I prefer long-form stuff on the TV. Every now and again the Android TV home screen will highlight a YouTube video that catches my attention, but that's pretty much the extent of it.
I will throw some attention to Binging with Babish
though as a YouTube series that I do watch regularly as it comes out (albeit on my computer).
HT: Sony 940C, Oppo 203, Harman/Kardon DPR1001, Infinity Interlude IL40 x2, Infinity Interlude IL36C, Infinity MS-1 ii x2, Infinity MSW-1
Computer: Elac Uni-Fi UB5 x2, Elac Element EA101EQ integrated amp, SVS SB-12NSD
Dedicated 2-channel: Infinity Intermezzo 4.1t towers, Bluesound Node 2, Emotiva PT-100, Crown XLS 1502, Furman PL-8C