D365 ain’t really even that bad. It is just model driven power platform app. It is actually quite expandable, you can code it with plain javascript or more complex components on React. Backend is OData which is quite flexible.

Old Dynamics AX and onprem CRM were shit shows.

Good, almost all of them were horrible, like AIX.

Visual Studio debugger is still best thing ever. It is strange how much poorer vscode’s debugger is compared to visual studio.

Damn! Same here, red hat 99, but switched to Debian quite fast

60k is single json file