Hm, I tested OF and twrp recovery on my mi 10 (umi) from yarpin.
Twrp:
Yayayay! It finally mounts exfat cards! Thank you Yarpin! Creating and restoring backups works (I tried the boot partition). Be careful what you wipe though, cuz items are rearranged. It also decrypts work profile. Tnx again!
[EDIT: Not so fast... After ~2weeks I tried to restore backups, but it failed... Yarpiin's twrp is still unstable... At least the backups files are compatible with MB's.]
OF:
Cons:
1)Can't decrypt work profile
2)Backups fail to be restored (the tar fork 255 error, which appears even after deleting the extm folder)
3)Backups fail to be written on my exfat sd.
[4)No bootloops]
Pros:
1)Takes ~1min to boot up and be functional (it takes ~5mins for that with MB's twrp)
2)MOUNTS EXFAT SDs!
3)The better/flexible ui
[4)The usb storage option (which probably doesn't work as intended, cuz again the phone appears as mtp device and not storage media device.)
5)The benefits OF recovery has.]
Thank you @yarpin for your work! If OF recovery could work on umi, I think it'd be supirior to twrp.
PS. I ~haven't set any locks (pin/password/etc.) on my phone.