@hollosch No, bedrock is for the bedrock client, and java the java client.
Bedrock includes (but not limited to):
- Windows 10 Edition (NOT JAVA)
- Phones (Android, iOS)
- Consoles (Newer versions XBONE, PS4/5, Switch)
- there is a Linux client as well
Java will run on anything Java can (mostly PC's)
If you want the both clients working on the same server, you need to setup PaperMC with the GeyserMC spigot plugin. This is easy to do and there are tutorials online to get you started. Note, there are no official paperMC apps for Cloudron, you may need to do this on a different VPS