Great work, toxic boss. How to navigate?

Do you have the mental bandwidth to take it up? If yes then take this up as a challenge! You can definitely leave the company but no certainty that your next boss will be better and/or your work will be even good

leave the company. you have no other choice. the bathroom can have the nicest fittings, if it stinks we got to leave.

Leave for better boss and similar pay. Learn as much as you can