I'm also hesitant to rely on Logseq for another reason. They've taken a lot of funding and now they're in the monetization phase. When I asked about the status of the open source project on Github, the response was crickets.
Has anyone of you switched to Obsidian?
I don't think it's very good as an outliner, though I haven't tried the recent outliner plugins, so maybe things have improved. I do my outlining with org-mode on Emacs because of my dissatisfaction with Obsidian in that area and lost data on Logseq.
Workflowy and Dynalist are solid ones (cloud based)
I like how the data storage is markdown files. I love the block centered outlier approach and use block references extensively.
I've developed some extensions too. The documentation is severely lacking here, but there are enough extensions on the (currently free and oss) marketplace that can be useful examples.
The query language is really freaking weird to me. It's clojure, datascript/datom. Not intuitive at all, but I've got several custom queries working as part of my workflow.
Overall Logseq is good software and I'd recommend it. Certainly take backups - I have from the start because of experiences like the above - but I haven't needed them yet.