I think we learned long ago that the "camera" was one of the least important parts of telling a story. You can take an iPhone and create beautiful art if what you're filming is compelling, you are skilled enough, and the story you're telling is good. Frankly I'm surprised that we haven't seen more folks using mirrorless cameras, because if anything, they are overkill for a lot of films being shot today, especially ones that will never be seen on the big screen.
My buddy made me re-watch Terrifier 3 since he just got into the series. It was filmed on an ARRI Alexa 35 using Panavision anamorphic lenses, but honestly, you never would've been able to tell if they'd shot it on a S1/H, S5/S5II, GH6/7, A7Siii, R5C, etc. and using any of the budget anamorphic lenses that have been released for these cameras. It's great to have an ARRI Alexa 35 and Panavision lenses, I can't really fault any low budget director using them if they have the opportunity to, but it didn't make the film any better and, no offense to the director and editor, but he wasn't skilled enough to get anything more out of using that camera and lenses than if he'd just used any mirrorless camera released in the last 5 years.