I owned Porsche 914s for years and the last turned into a project car for a loooong time and wasn't driven. So I drove auto for several years until I bought the GT3. Very heavy clutch, but I didn't have a recent comparison - until I went to Sweden for a month and drove a rental with a manual. I still remember the first time I stepped on the clutch - it seemed feather light and I almost pushed it through the floor. lol!
Yea, its often a bit of a surprise seeing how a clutch in another car feels or how sloppy the shifter is in some cars. My friend who owned the Mazda Speed owned a 1990 928GT then a Boxster Spyder, and he thought the Mazda clutch was heavy and tough to modulate in comparison. I haven't driven a 914 or 996GT3. However, I did try teaching my wife to drive stick on our old Boxster RS60, and although the clutch wasn't particularly heavy, it was really tough to continually find the right balance of clutch and gas to get the car to go smoothly from a stop. My wife used to call that car a moody bitch. I've driven 944s, 944 Turbos, and old Ferraris where it was much easier easier to continually find the right balance of gas and clutch to take off smoothly. Thankfully, the 981s don't seem to have that issue. Cheers!