Sideloading is not the main way to have games on playdate. It is popular because it’s simple and do not rely on playdate approval, but to have access to some API, a game must be submitted to the playdate catalog, so there’s pros and cons for each method.
I didn’t see an option for “other” link in a project page, also I already know itch.io have playdate games, most of them are offline.
I did some research before hand, that why I though asking for help would’ve been a good idea.
Thank you for the time you took to reply.