Xiaomi makes great hardware for the price but the software is simply terrible. I would not recommend buying their hardware if you come from a high end Samsung or iPhone and expect to be able to debloat it easily without wiping the entire thing and installing something like LineageOS.

I've bought a Mi 9 which had a similar price to features ratio in the hope the it'd become popular with the LineageOS community so I could run the latest and greatest open source ROM (it didn't) and the phone is pretty great.. . except for the terrible Xiaomi software. Nothing quite makes a premium piece of hardware feel cheap like a shitty "storage cleaner" application and ads (which you can disable, luckily) built right into the OS.

I'll probably buy Xiaomi again because of the hardware value for money, but this time I'll probably wait until LineageOS support is there officially instead if just hoping someone will add it eventually.