Any advice? I know the job market is a bit of a rough one right now as well.
That said, if you can display you have knowledge of the more important Rails libraries like ActiveRecord, ActiveJob, how Rails handles the MVC pattern etc., then your chances are much better. It's a bit of a magical framework when you first start working with it, so it's important to know what it does behind the scenes, at least a tiny bit, since otherwise it's easy to get lost.
Despite the major investment made by Stripe and Shopify, my experience is similar to that of this commenter: https://news.ycombinator.com/item?id=40161561 - like them, I've found the open source libraries available in the Ruby + Rails ecosystem to be aging and less well supported than that of more popular languages / frameworks like GoLang / Java / Python.
Rails is delightful to work in and very thoughtfully constructed, and the Rails community is helpful and welcoming. However, if your priority is to maximize your chances at getting hired, I would look towards GoLang / Java / Python etc, which are far less enjoyable to work in but far easier to find jobs for.
Best of luck!
That will allow you get familiar with the ecosystem so that you can hit the ground running and also allow you to point to experience during the screen and interview phases.