If you don’t ever plan on taking ProRes videos, I‘d say 128GB is ok. ProRes videos are huge and they actually only work in 4K if you’ve got 256GB or more, but they’re still huge in 1080p.

I’ve had my 13 Pro Max for a year. I take occasional pictures of my son, nature and so on, have quite a few apps and games (although not many big ones) and all the usual stuff, and I currently use 50GB.

One thing to note: I use Apple Music so I don’t have lots of music stored on the phone, just something like 10 playlists stored for offline listening. If you want to store lots of music locally and/or many big games like Call of Duty Mobile, I guess 128GB could be a problem.