did they say what the P stands for?

I think that the official name normally comes out very close to the GA release.

rule of thumb is stay away from mobile web unless necessary because of slow browser performance

I don't know about browsers being slow these days ? WebGL2 and the various JS engines V8, Chakra, JSCore

very cool. i prefer this than then the real one. YT has too much fluff and rabbit hole material

learn to recharge whenever you want and you can. take powernaps, or go for a walk or a shower