I usually have internet access disabled for Gboard.

IMHO this is 100% the plan. If they play their cards right they stand to take out two birds with one stone (heh). They've already paid celebrities to be on there.

Still, this can only happen if Threads gets massive enough relative to the rest of the fediverse that the incompatibility doesn't hurt them equally.
...that is to say, it's all pretty likely, unless other strong competitors show up with ActivityPub support.

That's a good question! I think you could read this first, but doing so may spoil some things about the Stormlight Archive IF you read some sentences very carefully and commit them to memory. Don't do that if you intend to read this first, or just read Stormlight before Yumi.

I couldn't tell you because I haven't read them. I did try to read Tress, but got distracted quickly. Some other time.

It's very much a romance novel, so you'd be disappointed if you went in expecting epic action stuff. I haven't read all of cosmere, but as for quality, I'd say it's way above Edgedancer & Dawnshard, and probably a bit below the Emperor's Soul.

There is also Piped, which is like Invidious. On Android you can use LibreTube which uses Piped as its backend, so you never connect directly to YouTube.