Log in/Log into/Log on and grammar

[Silverhand]

Hey!

1. Which preposition would you choose here?
2. How are the grammar and flow of these sentences?

I used to log into/in/on Facebook after my shift, but I lost interest when my feed started getting riddled with ads. Now I spend my evenings playing AAA games since I recently upgraded my gaming rig. Speaking of, have you given your 3080 any use, or is it still collecting dust?

 

[jutfrank]

1. into or onto
2. It's fine, but you could put gaming rigs after Speaking of.

 

[emsr2d2]

1. I'd say "log into Facebook" if I had to use "log" at all. In reality, I'd say "I used to go on Facebook".
2. I'd say "Speaking/Talking of which, ...".