Is SQL Server sp_who2 deprecated? I keep hearing sp_who2 is deprecated soon, unsupported. We are on SQL Server 2016 Enterprise.

What is a good official Microsoft replacement item or DMV which team should utilize instead of sp_who2? 

I heard one is sys.dm_exec_sessions?
Back in the days there was sp_who, sp_who2, but then came Adam Machanic and created sp_whoisactive. And he saw everything that he had made, and behold, it was very good. And there was documentation and downloads on the following days.