that speed is going to fluxuate through out the day depending on how many other users are using the line at the same time, and if everyone is making teams video calls, you can bet the bandwidth demand will be high hence everyone having a lower quality video and audio connection. Residential connections also largely are not dedicated, you share the line in your neighborhood or area with the people surrounding you, so in a nutshell you might have a 50Mb line but really you don't. Generally a residential connection has little to no service levels or priority routing. Now more then ever large amounts of people are working from home, using their "as apposed to business plans" cheaper internet connections. The other element that is effecting the quality which in turn is setting the resolution is the internet service providers and the connections end users have at their homes. Until they expand their Teams Cloud infrastructure, you can know that this quality will not change for a while.
One piece 754 high quality sub 720p#
In an effort to maintain the ability to provide a tool / service "MS Teams", Microsoft "I believe" have had to force a 720p or lower quality on video to be able to accommodate the large and rapid growth and dependency upon its service. This issue stems down to the surge of people using Microsoft Teams as a primary tool to continue work collaborations where as pre pandemic this kind of work would have been done face to face. This "probably" has nothing to do with your hardware or your own specific internet connection.