Thanks, indeed, it’s turned out I’ve missed the step "contact Zoom support and request “Meeting SDK For Web 720p” feature to be enabled for my account.
Now it works and I’m getting 1280x720 cap and able to stream HD content.
[2024-02-16 15:26:44.425946][info]: [0x00007f29f786d580] : [Main->VideoManager] 320x180, frame: 25
[2024-02-16 15:26:44.425967][info]: [0x00007f29f786d580] : [Main->VideoManager] 640x480, frame: 25
[2024-02-16 15:26:44.425991][info]: [0x00007f29f786d580] : [Main->VideoManager] 1280x720, frame: 25
[2024-02-16 15:26:44.426013][info]: [0x00007f29f786d580] : [Main->VideoManager] suggest_cap: 1280x720, frame: 25
Thank you very much for your help