Thats exactly what my two instances did. If you feel normal resistance it is the pressure plate springs you feel, it is disengaging. The clutch disc "floats" when disengeged, nothing actually stops is. It doesn't take much force to "sink" it, a little rust or small piece or metal. I've heard noisy ones you could hear spool down when the clutch is disengeged, it takes a second or so.

The throwout bearing is between the spinning (with the flywheel)pressure plate and the actuation arm (not spinning.) If the throwout bearing seized, it would be real obvious.

You could also try temperature cycling it. Let it get warm, run it (or drive it if you know how) 20 minutes or more, and let it cool.

If I may suggest again, try the starter. Even a gas one has lots of power. They have enough to bend valves if the cam is in the wrong place.

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5 speed '91 190E 2.6 320,000 mi. (new car, fast, smooth as silk six, couldn't find any more Peugeots)
5 speed '85 Peugeot 505 2.5l Turbo Diesel 266,000 mi. (old car, fast for a diesel, had 2 others)
5 speed '01 Jetta V6 (new wifes car, pretty quick)
5 speed '85 Peugeot 505 2.2l Turbo Gas 197,000 mi. (wifes car, faster, sadly gone just short of 200k )
5 speed '83 Yamaha 750 Maxim 14,000 mi. (fastest)
0 speed 4' x 8' 1800 lb Harbor Freight utility trailer (only as fast as what's pulling it)