There where problems for me when I tried, but I didn’t try recently.
If it works now for you, all the better, but I would advise some amount of caution.
Correct. As you can see with the link above, I’m coming from the experience of a non-working TWRP OS restore, so I’m used to that.
Now that TWRP can’t backup the data partition anymore I’ll have to substitute only this step with something else.
After the regressions in TWRP backup and restore functionality I’ve seen on my phones over time (Android 7 encryption was the last encryption TWRP on the Fairphone 2 could handle in practice, Android 8 could be installed on Android 7 encryption, Android 9 was game over, then initial loss of OS restore on the Fairphone 3, then loss of data encryption support on the Fairphone 3), I’m not sure TWRP will be the surefire way to go for me ever again, although I really liked it. I’ll certainly have a look in the Rooted debugging direction to handle the data partition.