Yeah they did. My reading of the policy is that YouTube does not allow content that shows off legally dubious (or outright banned in any state) accessories, and does not allow firearms in live streams (because shit can and often does go wrong, and live censoring isn’t really a thing). Teaching firearm safety is still very much allowed.
There are a few hidden gems (I enjoy Plague inc. and Rebel inc. on occasion, for example), but for the most part, the majority of mobile games are mtx-laden cash grabs. So the actual quality is commensurately low because the devs figured out they don’t have to put in real effort to implement gambling and hook addicts.
I used my Surface Pro all through college, and that thing is amazing. I took all my notes with the pen in OneNote, but it also has has a full desktop OS, so you’re not missing any functionality. Mine is even powerful enough to run some basic CAD modelling, which was a treat for when I didn’t want to have to deal with finding an open computer lab
DLC in this context is pretty widely understood to mean in game content. So additional areas, cosmetics, missions, etc. not the soundtrack. Steam just categorizes the soundtracks as DLC for games in general.