Tmp/ folder is filling up - can it be deleted

Nextcloud version: 24.0.4
Operating system and version: Debian bullseye
Apache : 2.4.54-1~deb11u1
PHP version: 7.4

The issue you are facing:

Overtime the tmp folder fills up. Some directories/ files are month old.
As a temporary workaround it would be nice to know if those can be deleted

Steps to replicate it:

Unfortunately we dont know what is causing this.

The output of your Nextcloud log in Admin > Logging:
Nothing