Yes, the laptop is like 8 years old and thermal paste mus have been dried out. I wanted to check it while cleaning dust, but failed to remove last screw from cooling tubes, I blamed my screwdriver but thought that removing dust would be enough for now. Well, I was wrong. I found out that cooling on my model is poor in general.
Anyway, I keep working on modes. I did some fixes for BfA scenario, but I feel a bit tired of it. Just no inspiration for it. I guess, forcing myself will be counterproductive, so I concentrate on other stuff for now.