I still don’t know for sure where you are running the control apps. Your Macs, I guess, but are they all limited to macOS 12 edit: 11, and nothing higher?
Within the stated limitations, the answer will be yes. Over time, I doubt you will be happy if new features are implemented in the server and you can’t use them because they are not represented in the control app without updates for it.
I suppose macOS users can install a more modern macOS version like Tahoe on macOS within a Parallels or VMware virtual machine, and run Roon this way: KB Parallels: Install a MacOS 26 (Tahoe) virtual machine on an Intel Mac in Parallels Desktop. (There are also options for ARM Macs in case any are affected).
Though maybe not super cheap because at least Parallels isn’t, not sure about VMware. I don’t know for sure if the free UTM would be an option but it most likely is.
Also be aware that many Intel Macs can be updated far beyond macOS 12 with
Edit: On Intel Macs that are only used as Roon Servers, installing a Linux distribution for Mac would be another option
Edit: And as another option for Mac servers it should be possible to run Roon‘s official Docker image in Docker Desktop for Mac: April Release macOS requirements represents significant change - #5 by DDPS