Of course, I'm happy to help! And yeah, I love this forum, too—it's a nice place to discuss technology with a nice community of people!
EDIT: Anytime I say "Thunderbolt port" or anything of the like, that also applies to any USB-C devices, too!
I think the 4 vs 2 Thunderbolt ports is another personal choice that depends on your use case. It sounds like you're leaning towards an M2 Pro Mac mini, just from what I've gathered, and those have 4 TB4 ports. The advantage to having two more ports is that if you connect lots of external drives (or devices in general) that use Thunderbolt, you can do that without the need for a hub/dock. And if you have three monitors, you'll be plugging at least two of those in via those ports (because you only get 1 HDMI port), so keep that in mind.
Essentially, the situation is:
- Base M2 Mac mini w/ 2 TB4 ports = you're using up both ports because you're driving 3 monitors. Can't plug in any more Thunderbolt devices without a hub or dock.
- M2 Pro Mac mini w/ 4 TB4 ports = you're using 2 of them for the two monitors (assuming the third monitor is plugged in via HDMI), and then you have 2 to spare for other devices without the need for a hub or dock.
I hope I'm making sense here. Please let me know if you have any further questions!!