Say I go down the Oathbreaker path for a while. When I switch back, will I still have access to the skills I learned as an Oathbreaker?

I challenged The Prison Warden to a dual, and then accidentally fired my crossbow, killing her lol. Insta-Oathbreaker. I wanna see what the skills are like

Okay, first time I thought I would be able to enter a burrow hole but nope. A rat familiar can't enter a burrow hole? Nevermind it'll probably be able to do next to nothing on the other side. Can't you let me poke around at least so I can see if it's worth casting 2 spells (disguise and reduce size) or calling up my druid to get in there?

I don't want to know where it is, just if it exists and if it's missable in a particular act:

Is there a cowboy hat in this game, and can I miss it by progressing too far?

No additional details please! Thanks!

Uh I just got Karlach, so now I'm cooking with fire

So I'm about to fight Kendrick and I haven't found the other ring of the True Love set nor given the book to the He Who Was dude. Will I be able to do those things, or will it immediately make me go to BG?

Has anyone else had the bug where pressing the level up button causes the game to crash to desktop?

I've played through one whole playthrough and I'm starting my modded run but I can't seem to level Asterion from 4 to 5. I looked it up and I found a reddit thread that has a lot of folks sharing the same problem with no one conclusive solution. I just wanted to double check if it's a vanilla issue with somebody else. Otherwise I just wanted to start the discussion here.