Sure, but then you can’t access it on windows or android. Or the web.

I’m responding more to the comment that it’s extra steps. It’s clearly not as good a solution as obsidian, but there are no extra steps for it being accessible over the web or to all your devices - not just those for the devices built in cloud provider.

I use obsidian on iphone, Mac, Windows and ipad. It syncs using icloud free tier. I don't have to pay. icloud is available on Windows as well.

If windows or android is a must then use something that has a client in them. I use OneDrive because it's the cheapest in my region. It's got terrible support from Microsoft, just lazy and terrible, but there are third party sync solutions for all platforms.

I think GitHub/gitlab issues is totally viable. Obsidian/Logseq too.

Does onedrive work now for syncing obsidian on iOS? I don’t think it did when I last tried a year or so ago.

If it doesn't, you just need to find one that does. I use it because I don't care about iOS. If you need one that supports iOS, macos, windows, Android and Linux and there isn't one, then it's justified to pay for their sync solution.

Or just use GitHub/gitlab issues.

I use Git syncing on GitHub with 0 issues myself. Since when has file syncing been an issue?