Magisk canary with the latest 21.2zip works for me. Also,about busybox, I think magisk manager has a busybox module to install from there (works for me). LP makes the phone to bootloop if you give it root access. (The bootloop happens after you deboot or boot up the phone.) I didn't give LP root access amd it didn't brick my phone. It may not be working at full capacity, but at least my phone works. (You may want to turn on display onother apps btw for LP to work better. Also ~dunno if enabling the permission to modify system settings would brick the phone.) You can try these, I have a mi 10 too, but ~dunno how your system will react (it's probably a good idea to back your phone). And one more tip: if LP bricks the phone try first to factory reset from twrp and if it doesn't work ~only then wipe data as well.