Don't recent projects populate the list in the: File> Open > pulldown menus?
Yes they do, but unless you have the option ticked in the Work Environment, it will close the current file and open the recent file in the same Archicad.
One of the forum moderators.
Versions 6.5 to 25
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Dell Precision 3510 - i7 6820HQ @ 2.70GHz, 16GB RAM, AMD FirePro W5130M, Windows 10