>Anybody can suggest a good URL for testing the wireless connection speed? I only found xFinity pages for testing the speed and I would like something independent of the ISP.

https://www.breitbandmessung.de/


>Also, you get too results, upload speed and download speed. For a teleconferencing (zoom, gotomeeting, etc.), which is more important Download or Upload?

1:1 >>same speed
1:few >>probably just right with somewhat slower upload
1:really many >> download