The update did not fix RCS for me ( Pixel 9 Pro, Verizon).
All the correct permissions are enabled, and it even says RCS is connected. However, I am still only able to send / receive standard SMS. It does not give me the option to send RCS.
I have tried uninstalling / reinstalling the app too, but doesn't fix it. When reinstalled, it reconnects immediately to RCS but doesn't actually allow me to message with it.