Best way of changing phone

For my child I am replacing the sony xa2 to a pixel 8. What is the best way which is the least time consuming metod to get everything from the xa2 to the pixel 8.
All apps and settings I want to transfer from the one to other phone.

Eventually a seedvault Backup transfer (should just be tried) and a lot of manually work.
Or direct from scratch
there’s no free lunch, sadly

A “force app data to be allowed for encrypted backup” would be a really useful feature for iodé for this use case.