I've just updated my website to WordPress 6.2 and now suddenly everything shows in English (translation) and also on the Spanish (original language) and Dutch (translation) sites. I do see the translations in the back office still but not on the front end.
Please try the following steps on your staging site and let us know your feedback.
1) Restore the live site backup in the staging space(the one before the issue)
2) Upgrade to the latest version of the plugins one by one
3) Check whether the bug is existing or not
4) Upgrade to the latest version of the WordPress
5) Check whether the bug is existing or not