Since you're already a GDB user, rr will probably feel comfortably familiar.

https://rr-project.org/ already has enough example usage to get you going on the home page right there.

rr is excellent. the only problem is it doesn't work for Windows

It's a little odd to use GDB on Windows. Have you considered either the Visual Studio debugger, or WinDbg?

WinDbg has time travel debugging, and is arguably 'more excellent': https://learn.microsoft.com/en-gb/windows-hardware/drivers/d...