GlassedSilverB
For the time being, Tachiyomi provides an ample experience.
Obviously, a native dedicated app would integrate a lot more tightly, but you might want to give it a try. It can be set to auto-download and auto-delete based on some rules you can alter to some extent. (but it can work manually as well)
Is the flattening what causes chapter 0 of a volume to sync as the full volume to Tachiyomi which then reports back the entire volume as read to Kavita? (if Kavita is enabled as progress tracker)
Sadly no it seems, gladly nothing crucial is locked behind it.
If general metadata scraping is locked behind that and no one-off payment is offered, I’ll keep using Komf. If hard wishes get pay walled that way, not sure if that’s compatible with my acceptance.
I’d gladly even regularly donate or something, but if I get the feeling features get DRM’d I’m not sure, I want to trust my library to that.
Fortunately I feel the developer is very aware of self-hoster mindsets and so far obvious limitations that other products would have locked in haven’t happened so far.