I just moved to backup laptop since my primary one has a defective fan and needs replacement and, while I use Logseq “Portable” and, despite the fact that my Logseq folder is not in Program Files (on Windows) and is not installed per-se (registered with the OS at Registry level), it still writes a lot in the user’s program data folder. I noticed this right now, as I am working on my logseq from my thumbdrive, that I don’t have my plugins and the theme reverted to Logseq default.
To solve this, I plan to take the data folder from its location and replace it with a symlink (or hard link rather, I don’t remmember now which of them can’t traverse partitions) and have that folder on the thumbdrive.
But a “native” solution for a portable version is highly recommended from my pov.