Phone (not rooted) running Android 11 and Termux doing superuser/root operations on a USB flash drive connected to the phone, for example "cryptsetup luksFormat /dev/sda1" and "mkfs.ext4 /dev/mapper/v1" --> Update-6 through Update-8 and "Connecting a USB device to QEMU using termux, termux-usb, usbredirect" at
https://github.com/termux/termux-packages/issues/19635 (see also Update-9, Update-10, Update-11).