As a refugee from 80's computing, I go to the thrift store and buy old Dell mechanical keyboards for $5.00 apiece. I use them til the labels come off too many keys. They're very reliable full stroke keyboards. Also, lots of keys in not very much space. Some vendors seem to think your keyboard should take up your entire desktop. This is annoying. My typing error rate is about half what it was when I was still using the Apple
Chiclet style keyboards. Got a Logitech keyboard for my
Raspberry pi 4. Nice, it's almost full stroke. The HP keyboard on my Windows machine is only about half stroke. It's nicer than Chiclet, but I still make more typos with it.
Mouse-wise I just had to replace my 6 year old Magic mouse. The IR diode output dropped off suddenly, so
really bad mousing. Replaced it with the gen 2 magic mouse. I love it, but wonder what happens when cat hair gets into the LED hole. There's probably some way to get it apart. Other mice, Logitec and bluetooth thinkpad moude (Lenovo) feel crude by comparison. Tried a mouse-pad, hated it.
Flattish mice with few sticky-out buttons, and full mechanical keyboards seem best for me.
My wife's got a 15 year old Saitek Eclipse Two illuminated gaming keyboard. full stroke. The thing will not die, and I swear they embedded the letters go all the way through the key plastic. I am jealous. Amazon stills sells them used, but $139 seems a little steep compared to my $5.00 Dells.