hey, yes!
I made a tutorial, can’t find it right now lol, will search for it.
L.E.: found it: Create subdomains on bubble app. Yes, it's possible
Use that and you’ll be able to do whatever you want. But keep in mind that you need to host your domain on cPanel (or other hosts with control panels, I made it work on cPanel), point A records to bubble, and use wildcard subdomains.
@Bubble could make the domain management more complexe, as in, with more options.