I agree with your core point that Mighty could have succeeded, but specific to your use-case: Mighty is “just” a nice layer on top of well-established remote-desktop technology, what pushed you towards M1 MacBooks instead of remote desktops? There’s lots of great options out there, comparable to Mighty on price (a little more management overhead, for sure, which is why Mighty was the ideal option — but still much more cost effective than buying MacBooks).