Home button - Clean or Replace?

I have a good-condition SE that still looks and works great. I’ve opened it to repair a few times in the past but at some point recently the home button stopped working consistently- Touch ID is fine and it clicks, but i have to press it just right for it to register. I eventually upgraded my phone but now I’m missing the SE.

I bought a new HB but am wondering if it’s worth just cleaning the inside first, and if so what’s the best way.

For some additional context, I popped the display open and shot some air inside and it improved for a little while, but eventually went back to normal.