What am I talking about?
https://github.com/Suwayomi/Suwayomi-Server
It's a lightweight docker/container/program for grabbing manga and comic from various sources such as mangadex, readallcomics, weebcentral etc and putting it on your desktop. It has no ads, it can download chapters and store them as individual images or chapter cbz.
It will even update automatically when there are new chapters of a series you bookmarked
You can run the .jar without jumping through Docker hoops just fine.
Ah nice, I see docker and I just nope out of a lot of things given that it takes up multiple gigs just sitting there, even without a container, and is generally pretty garbage on Windows (which I have to use for work).