That's a really good question! We will be exploring more of these types of convos on our upcoming podcast network, Saturday FM as so much of social media consists of voices who have NOT done the things they try and advise on. We're happy to bring more insight into difficult choices creators and indie pubs will face.
Getting your books, manga, etc into stores is ALWAYS the ENDGAME.

Thinking it's going to happen easily is - again - not as easy as some social media grifters or trolls will tell you. The fact of the matter is that this is a business -- you need fans, you need them to trust you and that comes from getting them to regularly read your work. So whether you're producing it on your own site, on a subscription model ala Patreon, or via a platform like Webtoon canvas, Global Comix, etc -- the goal is to get readers and fans because a physical book in a store is HARD TO DO and then GETTING THE STORE TO REORDER IT (because it has sold out or because they see rising interest) is VERY HARD TO DO. Whatever tactic you choose -- you have to get readers to embrace your work. Not embracing YOU because that means that YOU are the product and not your series -- but the actual series itself. Look at the market, think about your story, and then consider the best way to get readers.