This would be extremely convenient, if not essential, for cross-platform usage (via third-party syncing).
It’s currently the only thing that makes it impossible for me to use logseq in my daily workflow.
Edit: a temporary workaround is to use the fact that “.” folder is consistently a relative file path and systematically resolves to “assets/path”. For Paperpile users for example, a tweak is to move your “Paperpile” Google Drive folder into logseq’s “assets” (given that you store your logseq in the same Google Drive). Paperpile won’t break (even if you rename this folder) then you will be able to retrieve pdfs from “.” relative paths cross-platform (even highlights in hls_ pages will keep “.” relative paths). I believe a same idea can be applied with Zotero. Note that for best behavior, “.” should be omitted: paths should resemble “assets/path” and not “./assets/path”.