Our ArcGIS Enterprise v10.7.1 portal has some .portalsite files in a temp folder on the portal content directory. It appears these are related to some backups, but I do not have these .portalsite files for every full or incremental backup we have run. Each of these are anywhere from ~1GB - 3.5GB and we currently have 6 of these on our
\arcgisportal\temp folder

As a result, it is taking up 14GB of content out of the 27GB in our content directory.
Do these files get cleaned up automatically? Can we safely delete these?
Thanks for any guidance we have