@pedersen I think ya gotta scratch that itch, if you have it. I switched for three months as an experiment … and ultimately found I like #Obsidian better (it suits my note-taking style) as a #PKM tool … and love #Logseq as an #Outliner.
Maybe take a month or so and see how working exclusively in Logseq feels. To be fair, give it a few actual projects to wrangle and give yourself time to get past the joy of the new. Then: go with whatever really works best for you!
Wait, #Obsidian doesn't store just standard Markdown? /s
Jokes aside, I much prefer #Logseq syntax i.e. `key:: value` because it can be used for blocks too, not only the page, without taking too much space.
I am not aware of any script that convert YAML frontmatter to Logseq page properties but in case you want to go back there is this export script for Logseq: