I’ll start: printers.
I bought an HP in March 2020 when my job went remote and HP bricked it remotely after only 100 pages because I wouldn’t sign up for their subscription program. Ended up trashing a perfectly good printer.
Luckily my library’s close by and I can print there remotely.
I stopped using a smart watch I used to use all the time because Samsung started requiring location services to be on to use it. Immediately made me drop it and I stopped buying anything Samsung after that. Not only would I never be okay with having that on all the time, it’s fucking insane to start making that a requirement for a device that never required that out of the box.
As a bonus one, I’ll never buy anything Playstation ever again for obvious reasons.
About 12 years ago I bought a Samsung tablet that had an IR blaster function so I could control my TV and audio equipment. It was a primary reason I chose that model. Less than a year after purchase Samsung discontinued their app and remotely disabled the tablet’s IR blaster.
It was less than $5 for a replacement app that could be configured to get it working again, but the fact Samsung thought it was just fine to remotely remove a feature that was one of the primary reasons for my purchase is not something I’ve forgiven.
Since then I’ve bought lots of consumer electronic products but have not (and probably never will) consider another Samsung product.
That sort of crap is why I specifically buy older Samsung hardware like that tablet. I love a Samsung Galaxy S10e for my phone, because I can flash Graphene onto it and not have to deal with their firmware. If that tablet had/has an IR blaster, it’s old enough to do the same thing and rip all that Samsung software off of it, flash it with a FOSS ROM, and enjoy your hardware.