Help Connecting to Azure AD joined laptop

Hello!
I've searched the forums and tried some solutions pertaining to connecting to an AzureAD laptop using RDP. However, none of the solutions I've come across and tried worked.

That said, there are a few blogs that have worked using an MSTSC .rdp profile. These solutions require editing the configuration file by adding the following to the end of the file:
enablecredsspsupport:i:0
authentication level:i:2

So, using MSTSC with that configuration WORKS. However, I cannot get it to work in Remote Desktop Manager [RDM]. No matter what settings I've tried (EnableCred = False; Disable NLA; change RDP Type to 'Azure Cloud Services'; or any combination thereof, it just doesn't work.

I can import the rdp file into RDM - that 'works' except all it does it launch mstsc . However, I haven't gotten it to work natively in RDM. What am I missing? I am new to RDM as I'm transition from mRemoteNG. Thank you!