Multi-radio-source interference limit?

[rueckwaertsflieger]

In 35 MHz days, avoiding interference was easy - theoretically speaking. You could use one out of about 20 channels in most countrys of the world, equalling 20 RC links, with more of them in many countries.
Today, no 2.4GHz max-possible-RC-link discussion has ever made it to the public. Things get complicated since so many different air-protocols are present and other than RC 2.4GHz radios made its way to the airfield, cellphone BT and WIFI.

Is there any chance of estimating a theoretical min-to-be-expected radio count working alltogether?

In ExpressLRS/ExpressLRS#2119 a simple formula is given, expecting e.g. LQ of 82% with 8 RC-links at the same time. But that's far from any physical objective and assumes a closed ELRS world.
On the other hand, flitetest gained a world record with 179 RC links operating simultaneously. https://www.guinnessworldrecords.com/news/2017/8/video-watch-179-rc-model-aircraft-flying-at-the-same-time-485624