Yes, it looks like it is not support by the current version just yet - https://learn.microsoft.com/en-us/azure/virtual-machines/extensions/diagnostics-linux?context=%2Fazure%2Fvirtual-machines%2Fcontext%2Fcontext&tabs=azcli#supported-linux-distributions
It might be possible to manually installed the previous 3.0 version here: https://learn.microsoft.com/en-us/azure/virtual-machines/extensions/diagnostics-linux-v3?context=/azure/virtual-machines/context/context