I saw the self checkout machines in my supermarket being restarted a few times and caught a glimpse of what was shown on the screen. Before they were upgrade some time ago they showed that CentOS was running and now I think that I saw Rocky Linux running on there. So yes, these are definitely out there and used widely.
Also I’ve see pictures of Raspberry Pis being used almost everywhere.
Please keep us updated about how this is going to work out in the future.