Sadly Brother still having issues with this its basically a WiFi enabled camera as a phone I can't get a signal I am a 5 minute walk from the mast I struggle to get even lte let alone 4 or 5g
So with Android 12 after each update . Do a wipe cache and repair apps when in same menu. Keeping chacking for updated apps in both stores. And you should be fine.
I have been doing that throughout I was doing these things when in the beta test group GoanGeek I am not alone with these issues that are associated with the exynos version of this phone you will have seen a lot of posts about these issues I am sure
And I have exynos S21, also not having issues. Interesting that some users with exynos are having issues and some not. Probably cause mine is locked to ee so they test the software before releasing it.