I don't understand why anyone needs a software to achieve this in the first place? I've hooked the camera's HDMI out to some cheap random USB-C HDMI capture card, and use OBS to record the stream. Easy, uncompressed, no restrictions to whichever settings their software lets you access.
I guess it depends on the app, but I just checked and both Skype and Teams show me the capture card as input source, and the preview picture looks fine. So I'm pretty sure it works in an actual call, though I haven't tried it yet.
Both apps heavily compress the video signal though, even if you set the quality to 1080p, so I doubt it makes a huge difference compared to a regular webcam.
It's easier to market based on hard numbers like resolution, so people are used to big res number = more better, but if that high res sensor is capturing a crap image, you're going to get a crap image. Garbage in, garbage out.
That's gotta be pretty jank. If I'm trying to connect a pro-sumer camera like in the article, I'd want the connection to be quality. Pro-sumer capture cards start at around $300.
I have a high end Canon myself, and the card does an excellent job. I bought it while living in China though, tech there costs a fraction of what you pay in the US.