Fryboyter, 11 months ago Maybe Borg is a possibility. However, I have not yet backed up an entire system with it, but only certain files. The file permissions have always been correct when restoring files in my case. Which compression (LZ4, zlib, LZMA or zstd) and which compression level is used can be specified when creating a backup. Backups can be mounted via FUSE, so that you can restore individual files with an file manager or a terminal emulator, for example.
Maybe Borg is a possibility. However, I have not yet backed up an entire system with it, but only certain files.