[Resolved] How to stop users editing files in selected locations?

Nextcloud version (eg, 20.0.5): Nextcloud 24.0.6
Operating system and version (eg, Ubuntu 20.04): Debian 11
Apache or nginx version (eg, Apache 2.4.25): Apache
PHP version (eg, 7.4): 7.4.30

The issue you are facing:

I’m using “Group folders” to create and control access to shared folders.
Depending on user group and folders settings users can/can’t edit files. However, I have some folders which “admin” people should be able to control but files in those locations should be read only. Particularly all doc’s should retain original version.

I have CollaboraCODE enabled and if a user opens a file in the “secure” location that file will show as edited which isn’t ideal.

Would anyone have any idea how to control read/write on files or how to “lock” files in a certain location?

Collabora Online - Built-in CODE Server 22.5.802
Edit files with LibreOffice 1.1.0
Group folders 12.0.2
Nextcloud Office 6.3.1

Found viable solution by using TAGS and flow.