Humanius

I have a YouTube channel as well, and also got notified about this.
The setting is disabled by default, so I don’t have a particularly large problem with it. But that might also be because I’m in the EU.

I was reading an article on that on Tweakers two days ago, and I was quite confused until the last sentence saying that it was not related to the “decentralized chat protocol with a similar name”

In many programs the alt key will access the toolbar, be it hidden or unhidden.
At least that seems to be the convention in Windows. I’m not sure what the convention would be on Linux.