Unfortunately, no. However, there are alternatives to sync. I love Logseq, but dislike the lack of a sync server. I have not not tried either of the following methods as I just recently switched to iOS and just used Syncthing on my Pixel. The guide on ish also has a comment on encryption if you scroll enough.

Working Copy (paid, free for students): https://github.com/CharlesChiuGit/Logseq-Git-Sync-101/wiki/F...

ish (free): https://forum.obsidian.md/t/mobile-sync-with-git-on-ios-for-...