The only issue with this concept is that when everyone use a proprietary solution and you are a marginal, it is very hard for you to have support. If everyone

The only issue with this concept is that when everyone use a proprietary solution and you are a marginal, it is very hard for you to have support. If everyone you know is using zoom and WhatsApp, they will not use signal and jitsi just for you, so you will be forced to use the proprietary tools. Think about remote school and trainings for example ,here you have zero choice. And in the past, we saw the case with Linux where it was very hard to have support for hardware as manufacturer did not care at all about Linux. For such a case, scaling is an important factor to be able to use your open source software. Sadly.