I don’t use them. I see this as a putting all eggs in one basket strategy, if my master password was lost, hacked, hosting company shutdown, or for whatever reason refuse to do business with me, my entire life would be screwed.
Instead I use long passwords made of words, and for each site it will be a few letters off. They’re easy for humans to remember because how similar they are, but due how hash works are equivalent to unique passwords to hackers.