Updated from Mojave to Catalina, first thing I've noticed is the Spotlight problem

I've updated from Mojave to Catalina (don't want to buy the new wifi pci card, current BCM4322 is dropped from BigSur onwards).
First thing I noticed is the Spotlight indexing problem due to root drive being read only.
I have SIP disabled, so "sudo mount -uw /" does the trick and the indexing starts.
Is there a more elegant solution?

I'm running it with clover 5146.

Author: twotimer