After OSUpdate device not booting from slot B even after marking

From there you can run fastboot getvar current-slot to see which slot you are on And you can change slots using fastboot --set-active=the slot

But i cant uninstall those modules without twrp So i decided to flash twrp into a boot slot via fastboot then, i set the active-slot to that but then I still

fastboot get active slot Checking Android's Currently Active Partition Slot Explaining Fixing the ADB_Vendor_Keys Not Set Error Explaining Android · 7:33

fastboot set active slot slot fastboot getvar current-slot fastboot getvar all Get active system slot slot fastboot