There’s a post on how to refresh an active leaf vs reloading the whole app:
Ran into this trying to get a workflow for export/import Concepts app drawings. Works alright, when you bind it to ctrl-r (newer versions of obsidian doesn’t bind to reloading app anymore).
At some point I’ll make a plugin that just watches active leaves for file changes and auto refresh (…hopefully not the whole leaf…maybe I’ll just do the change/undo in code lol). But this works well enough for now.