I just started using Logseq this week, coming over from Obsidian. This was an interesting article and I think has me convinced to at least try using both with Logseq being the main driver of journaling + fleeting notes, and Obsidian for its graph and making more evergreen notes.
I fear that my logseq's performance will decrease on Android, until it's becoming unusable. I really use it all the time.
I have the feeling that Obsidian offers better performance, but my red flag there is that code blocks cannot be indented. So I stick with Logseq and its nice tree structures.