I`ve used nativefier and it works great, just make sure you use the correct settings. You can build for Windows, Linux and macOS.
- Install Node.js on your computer https://nodejs.org/
- Go to a command prompt and type
npm install nativefier -g - Then run the command
nativefier --insecure --ignore-certificate --name "My Bubble App" "http://yourbubbleapp.com"
If you want your own icon, to remove the menu bar etc. Check out the documentation.
Let us know if it works well for you.