I moved your posts here because your concerns are being discussed here already.
Worth a try when in TWRP …
A little more detail in between …
Apart from TWRP a manual install has helped people …
https://support.fairphone.com/hc/en-us/articles/207914363
Rather, there are issues with the bundled TWRP version, that’s why it gets replaced with the Android stock recovery with this update (once it installs successfully) …