>>17931647Apparently not as some of them frequently brag about doing the thumbnail themselves.
You can also tell who values the thumbnail a lot and who doesn't, for example Subaru copypasting the same like 2 images of her onto whatever generic promo image for a game to the point her audience called her out on it, and she just laughed when realizing it apparently not realizing that's not how it usually goes.
Personally I don't see it as something that should take more than like fucking 5 minutes to do if they know a paint program at fucking all and just need something that'll communicate what the stream is. If they have an idea to try to bring in specific assets/images, use filters and fancy type etc I can see it taking longer, but it should never be listed as something actually taking up a lot of your off-stream time as that's as lame as going "yeah man a lot of my time off work is spent walking to and from my car in the parking lot, shit sucks."