Markdown on the go is a bit annoying.

True. It does have WYSIWYG editor, so I use that more than any actual markdown.

Although, I don’t add that many things on the phone usually. I might scribble a quick note in the middle of the night, or add a quick task. Tends to work alright for that.

I use logseq (similar to Obsidian) with a To-Do plugin. Logseq has a journal feature, so I can write all tasks that come up in a day, and then I can view all tasks across all days using the to-do plugin.

Then you can use some sync tool (syncthing for example) to sync all your notes between desktop & android. That way, you can create tasks on both your phone & desktop.