I had troubles setting up my mom's new M2 mini. I have a compact magic keyboard and mouse: both are the AA battery Bluetooth versions. The keyboard worked fine, but when I added the magic mouse, the mouse would start skipping, and I would hear this clicking noise like *tick* *tick* *tick* *tick* coming from the Mac. It would freeze up Mac OS in the process. I used my wired razer mouse instead, and it worked fine. I made sure my keyboard and mouse were forgotten on my other Mac and completely disconnected. I do have a PC next to me with a Bluetooth antenna, but since the Apple keyboard was working fine, I don't think that was the issue. Thankfully my mom has all wired devices, but still it really pissed me off.
I was also going to upgrade to this M2 mini as well, but I'm not going to if I can't use Apple's own Bluetooth mouse with it. WTF. These are both Apple peripherals. If my 2011 MacBook Pro can use them both without issues, why is the brand new M2 Mini not able to handle them?!? Are these issues also happening with the M1-M3 MacBooks as well? Or is this just a mini thing?