For people who mostly invest passively, how do you stay engaged without overdoing it?

I’m not trying to restart the usual active vs passive debate.

I get why passive investing is the default for a lot of people. It’s low cost, simple, and probably easier to stick with long term than constantly feeling like you need to do something.

What I’m curious about is the middle ground.

A lot of people get into investing because they actually like learning about businesses, markets, valuation, portfolio construction, all of that. But if you really take passive investing seriously, there’s also a point where doing more just turns into noise, overthinking, or pointless tinkering.

So I’m wondering how people here deal with that over time.

Do you mostly stay passive and keep the interest/learning side separate from your actual portfolio?
Do you keep a small part of your portfolio for active ideas?
Or did you eventually realize that staying engaged usually leads to making worse decisions?

Interested in how people who’ve been investing for a while think about this now compared to when they started.