Does an M3 struggle to run the latest Apple software? I'm running an M2 Pro as my daily driver, and I doubt this thing will need replacing this side of ~5 years
No. But that laptop could easily last ten+ years. If they're just starting to get it working now I doubt the experience is going to have all the kinks worked out for a while anyhow.
Same with my M1. I haven’t noticed anything struggling, even with tons of expensive apps running. Tahoe slowed it down to shit (and I’m not just talking about electron-gate), but Tahoe slowed everyone down to shit.
Local models are slowish, I guess, but that’s pretty niche and they’re still usable. Nothing else is even noticeably laggy at all compared to my partner’s M4.