i’m not usually one to suggest a fresh installation if someone doesn’t say that is what they are looking for, but if
that is something you are already planning on doing soon anyways i have to wonder if it wouldn’t save you some time and frustration especially in the short term. i know a fresh install isn’t always a complete fix, but at the very least it might be worth considering 
troubleshooting can be a hit or (often and) miss procedure. you asked before
and unfortunately there is not real way to know without trying a fix and seeing what happens.
i’m still willing to try (and hopefully others will chip in if they can) if you decide you would rather wait. i just thought it was worth a mention.
in regards to your statement about turning your pc into a brick, do you have some kind of backup program set to use in case something goes wrong like that? i like timeshift because it is pretty user-friendly.