Powershell. I checked and the command is like PS > [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String(“YmxhaGJsYWg=”))

Noone is going to actually use this. Why it can’t be just “base64 -d” like on *nix?

It is true that it is a little obtuse. That's because the Powershell language is designed to be a fully fledged scripting language more akin to Python than the shell-like syntax of BASH, with all the advantages and disadvantages that entails. It's also true that cmd.exe (the BASH equivalent) is very underdeveloped when it comes to anything not directly sysadmin related.

I didn’t know they included recorder recently, my bad.

No worries, it is a fairly recent addition.

FTP client I didn’t know too, still it’s a console client and no integration in Explorer.

They used to have a GUI client too, but it was built into the browser, and has been removed as of Edge 88.

For whois in Windows 11 search results points to a .exe program to download manually from Microsoft site.

That I did not know, apologies. How mystifying. You'd think at least a prompt to use a Winget command would make more sense.