Yes there is. It is mentioned on the 8" screen mod thread.
Change from magisk Canary build 19.4 to magisk stable 19.3 and you can delete anything you want.
Yes with root file manager I was having the same problem with apps returning after reboot. Canary Magisk was the problem. After installing Magisk Stable all problems were gone. hope this helps someone.
I had the same problem until I flashed Magisk Stable. Now no problem to remove system apps on android 10.
Flashed with blue_spark TWRP no problems. Thanks eng. stk