Hi, Try the following -
Uninstall Members app on both S23U and the tab.
Remove the SIM, restart your phone and reinstall Members app on S23U. Does it show the correct country now?
On the tab, which country was selected during setup? If it wasnt UK, try changing to UK.
I must be honest I don't want to muck around with it on the S23, since it is OK on there (the pop up appears sometimes, but nothing changes).
On both the phone and the Tab only English has ever been selected, both setup for use in the UK.
On the Tab, it is only the 'Discover' and 'Community' pages that are in French, 'Support' is in English (Notices and Activity are also in French).
The fact that a Factory Reset has not solved it is a bit concerning! Maybe its some bug in One UI 3.1 (can't update the Tab any further) However, I've just deleted the App from the Tab and will just use the phone for Members stuff.
Not using a VPN and language and regions are English/UK on all devices and always have been. Checked my account using my Windows PC and cannot see anything that could be causing it!
Its got me stumped. Above is a screenshot of the pop up; this has appeared on both phone and Tab, but made no changes on the phone. I can have both devices next to each other with the Members App open and logged into both, they both show exactly the same posts etc... but the Tab is in French! Nothing else is affected and I cannot find any language or location settings that are not English / UK. I've reinstalled the App, I've cleared the cache, I've done a factory reset of the Tab, nothing gets rid of it.