I love logseq. It’s the first and so far only notes taking app that has really clicked with me. I tries obsidian before but I think I was just overwhelmed. I love logseq BECAUSE there is “only” one place to put stuff. Sure you can write in pages directly but i rarly do this. When I need notes a second time and search for tags I usually move the blocks to the specific page. Otherwise notes stay in the journal to die :D
However this is for desktop. My problem with mobile is I can’t get it to sync properly with nextcloud and getting my personal stuff off of public clouds was kind of my whole point in setting up nextcloud.
As for todo lists on desktop there are several plugins but tbh I just favorite the todo page and check it regularly. Works perfectly well but of course depending on your use case your mileage may vary.