What su permissions handling app does everyone recommend? I followed all the steps to flash the rooted image but I have a suspicion it did not take. Thanks!
Edit: SuperSU and other similar apps were not working, but I realized I didn't go far enough with Magisk on my first try with it.
If you download the apk from
http://tiny.cc/latestmanager (instructions at
https://forum.xda-developers.com/apps/magis...emless-t3473445then let it update itself (twice, in my case, up to v16)
Then do the 'install' at the bottom of the magisk manager app, let it do its thing, then reboot.
Now root is working for me, can run su in termux, etc.
Thank you for mentioning magisk, paulx. My own fault for not going far enough with it on my first try.