What kind of questions should I ask on an interview to know if the work environment is good?

If it's "fast paced"=not good for people who can't handle much stress

tell me about a time when you and your team had to work through a difficult situation.

“good” is relative to you so think about frustrations and enjoyment you’ve had in the past and ask pointed questions around those

for example, if you have strong preferences on being contacted outside of business hours, ask “how often do employees communicate outside of business hours?” or if you get caught up in how well defined tickets are ask “what is the process and expectations for defining tickets and handing those off to developers?”

those are 2 questions that the same answer could be extremely attractive to one person and a red flag for another, but everyone has different preferences so you need to think about that for yourself

"what is your Joel score?"

"Is the work environment good"

If it’s a large organisation it can be difficult to tell because you might shuffle around and work in different teams. One day you might have a good team and the next a dogshit one.

If you won’t be shuffling around and you’ll have a consistent team then the best way to gauge the toxicity of the team is simple. All you need to do is ask your interviewer if it’s possible to meet the people you’ll be working with so you can gauge if you’re a good culture fit. If you can get a meeting arranged with them, violently abuse them and then see how they respond.