

bootloader unlocking
I used to buy Xiaomi products because of the bootloader unlocking, but in practice it is a dystopian nightmare - they have built it so to unlock the bootloader you need a cryptographic signature from them, and they don’t give that out all that easily.
You have to sign up for an account with them, use a Windows-only tool to request unlocking, and they have a long wait period (deliberately imposed) to unlock, which sometimes randomly restarts. The wait period is different for different models, and can be weeks.
Their support are unwilling to help unlock immediately even for replacement devices where you want to get up and going quickly - if your device breaks (they are not the most durable phones IMO, as you note) and you get a replacement, you’ll have to wait the time again before you can restore a backup of a phone using a custom ROM.
It’s possible they have improved, but because of their attitude around what I can do with my own hardware, I’ve stopped buying Xiaomi gear.
And apparently enforcement of foreign judgements in the US is state-by-state, and the US state doesn’t need personal jurisdiction over the person. So any US state court can decide to recognise a foreign jurisdiction, under local state laws, and all other states will recognise it. So if OFCOM can find one state that will recognise the judgement, then they are in trouble.