FP6: How can I roll it back? No mobile data after today's update

I installed today’s update, and after the reboot my Fairphone 6 wouldn’t connect to either of my carriers (Mint Mobile in the U.S. or Telcel in Mexico). I tried different APN settings and rebooted several times, but nothing worked. Emergency calls only. Right now I can only use Wi-Fi, and even that is unreliable because of the ongoing IPv6 bug.

What is going on with this phone? It feels like every update fixes one thing and breaks another. This is beyond frustrating.

How old is the SIM card and what does your provider say? Did you try to disable 1 SIM to see if the other connects? As sometimes settings are reset, mobile Data and VoLTE is all enabled?

Edit: to roll back you have to unlock the bootloader which will cause a factory reset

https://support.fairphone.com/hc/en-us/articles/18896094650513-How-to-manually-install-Android-on-your-Fairphone