Quality control is important for a project that is going to be supported for long time, and used by many. Slow but steady is a right approach for open source project, IMO.
The application will stream the selected monitor if the mutter screencast portal is available. If it is unavailable, a fallback to X11 based frame grabbing will happen. As such, it should work fine in almost all setups.
If your use cases (a.k.a. requirements) are met by your current distro, never switch.
If you are satisfied with stability, availability of support, quick availability of security patches, never switch.
This is particularly important when you are using your Linux desktop as your daily driver.
Most you can do is to check what additional features other distros are offering (rolling release, hardened/zen kernel, x86-64-v2/3 support, file system type, user base, availability of packages, package formats, overall documentation etc.), validate if you really need those features.
If you are interested or just curious to test those features, install that distro on a VM (QEMU/KVM) to try it out first safely. Use it on VM for a while, make yourself comfortable with it. Once you are satisfied with it, only then switch.