Upgrading from 0.31 to 0.33 or later under debian bookworm

I am with debian bookworm, but kept deb-multimedia at bullseye when I
upgraded to bookworm as I did not want mythtv version to change. Now
stable will be switching from bookworm to trixie. Also mythtv has moved
to v35 or may be v36.

I feel left behind, but very afraid to upgrade as in the past every
upgrade had landed me in misery as something or other broke. I am
wondering if anyone upgraded from 0.31 to any one of 0.32-0.35 under
debian bookworm from deb-multimedia? If so, what are the steps you took
to upgrade.

I have one host that is both front and backend. This is the only
backend. There are two other frontends on my home network. I use HDHR
network tuners with dnsmasq assigning static IP using their ethernet
address as the key.  I also upgraded mythfilldatabase to use the newer
method to grab schedules (is that called json method?)

I want to upgrade front+back end host first. Here is what I plan to do

1) Make sure bookworm is upto date.
2) stop mythtv front and backend. Stop backend service so that it does
not fire on reboot.
3) Change sources.list to proper bookworm deb-multimedia  entries
4)  apt update and apt upgrade
5) Reboot to make sure that everything is alive
6) run mythtv-setup which probably will do a database upgrade
7) start mythtv backend service
8) start frontend and check. If everything is ok, repeat steps 3-4 and 8
on other frontends.

Note that I have preferences.d/xxxx set to treat deb-multimedia to lower
priority to prevent auto update of packages with apt upgrade. Let me
know if this is a problem as I can temporarily changes things as part of
upgrade.

I have at least one week of daily database backup.

Regards
Ramesh