Andor was amazing for a Star Wars show.

It was barely average as a tv show.

Guess I am forever spoiled by The Expanse. Or just old and cranky, too.

I really should like the Expanse... but it never clicked for me. None of the characters were likable and everything was so cynical and miserable. I think I stopped after seasons 2. Should I keep going?

Probably not. I loved the Expanse, but I loved it from the beginning.

Give the books a read. They might feel familiar but they're different enough that a lot of book readers don't like the show due to the character portrayals

Cynical, miserable and gray is kinda the point, so it might not be your thing. I loved it from the start. Season 3 is the best of the series btw.