Well software has gradually improved and VNC hasn't so of course it's "software ageism". In any case if you were seriously not aware of VNC's shortcomings compared to modern alternatives:
1. Hilarious security. Passwords silently truncated to 8 characters, etc.
2. Inefficient graphics. Very laggy on all but the best connections. Just sending an H.264 video stream is better these days.
3. No seamless window mode.
4. I've never needed it tbh but I doubt it supports remote sharing of USB, printing, audio, GPU etc
1. Hilarious security. Passwords silently truncated to 8 characters, etc.
2. Inefficient graphics. Very laggy on all but the best connections. Just sending an H.264 video stream is better these days.
3. No seamless window mode.
4. I've never needed it tbh but I doubt it supports remote sharing of USB, printing, audio, GPU etc