Log Download on sg 230 via ssh

Hello, my question is still the same as here Log Download via ssh with the knowledge that winscp with loginuser does not download all Logs (only 2.7 GB of 50 GB) and copying to /tmp is not possible because...
UTM 9 software as ProtonVPN client

This question hasn't been asked in 7 years. Has anyone gotten this to work. Essentially, I'd like Proton to be the parent proxy for the UTM. Thanks!