Godfrey my reading is the answer to your question is yes. These programs like the zettlekasten system Seem to revolve around putting information in discrete notes with tags and an indexing system that lets you combine them in different ways.
Both obsidian and logseq are tools which index and make the linking easier.
The latest fad (which I think is going to last) is that these programs avoid complicated proprietary formatting like Microsoft Word uses and stick to very simple formation using asterisks and pound signs and underline characters and similar, which makes them readable by the human eye without a lot of computer code. That's what "markdown" is.
Libre office files are in Word or a type of XML format and it's my understanding that obsidian can read them, but can't manipulate them optimally like markdown.
But libre office and make other utilities can easily convert or export them to markdown if desired.
I now have most of the key Epicurean texts in markdown and I need to zip them up and upload that somewhere so that people can use them in either logseq or obsidian. Of the two I am finding obsidian more helpful for this.
In my Observation logseq is more of an outlining program useful for generating new content, and obsidian is lending itself to organizing lots and lots of large files and searching through them.
