As Igor Eisberg explained here (https://xiaomi.eu/community/threads/frequently-asked-questions.73215/#post-728261) you can't update system apps in a ROM from xiaomi.eu. As far as I understand it, system apps are only updated with a new ROM version.Xiaomi has the ability to update built-in apps without installing new ROM. Just be patient and wait, and of course, check regularly. Gallery app has just gotten an AI trained model for AI image expansion and object removal. Camera will follow suit. Do note that they may use different models for each region due to region specific preferences, as EU is based on CN, expect to get CN preferences especially for skin tones.
I can't update system apps from APK/Play Store/GetApps
You should never update non-Google system apps on our ROMs, or custom ROMs in general.
Otherwise, you'll lose the translations and modifications we apply to these apps.
This is also a measure to prevent you from false-reporting issues not related to our ROMs.
MIUI/HyperOS app updates that show up on Play Store cannot be hidden. Nothing we can do about it.
Also, GetApps is not part of our ROMs and you should not even have it installed.