Not only are people doing regular scans, there are companies with dedicated infrastructure to do the scans for them, and making result easily searchable.
Check out https://www.shodan.io . Put your (or any other) IP address in the search bar and I guarantee the most of the services running there are already scraped, indexed and categorized. Sometimes it will even recognize a specific app or framework it's build upon.
Not only you can search for a specific IPs, but can easily look for, let's say all jellyfin instances in a certain country.
I used to search for open tvheadend instances to watch certain TV channels for free. There was a guy who not only published his tvheadend on the internet, but there was an active VNC server on his mediacenter, running kodi. Controllable by anyone without a password.