Fedora Linux. You can see Fedora is listed as one of the Linux versions on the Framework’s Linux compatibility page. And as a desktop environment (you can select how GUI looks like on Linux), you may want to use GNOME or KDE that may give you a similar experience like Windows. Fedora Linux provides the GNOME in the default downloaded installer, and KDE spin installer too.
If you have general questions about Fedora, you can ask questions on Ask Fedora on the Fedora project’s forum. You can check the Framework forum’s Fedora thread [Fedora 39] on the Framework Laptop too.