I used to go for Xiaomi phones but I stopped because I had too many issues with the OS. The amount of times it would close an app almost as soon as it leaves the screen was too much, tried every setting ever to fix until I just starting doing 2FA with a floating/split screen.

8 years ago the OS was one of the best, 3 years ago it was one of the worst, not sure how it is now.

What app are you using to log the requests?

I bought the Poco F1, which i think was the first with a internal heatpipe back then? Well, geared at gamers. Still was fairly powerful 7 years later when it broke. So, there's that at least.

What happened about the bootloader? Afaik there's "only" a 7 days waiting time but that is to be done only once, if the serial number is tied to the Xiaomi account that makes the request, the next bootloader unlock has no waiting time.

And devices that run a ROM for the Chinese market only accept a bootloader unlock request from a Chinese IP address