You're not alone. Zoom/video-conference fatigue is definitely a thing (Google it) and it can take more than a few meetings to get used to the experience. I've participated in video calls nearly every day since mid-March for work and have experienced and seen others struggle with figuring out the location of the camera, echos, the "right" lighting, how to share screens/files, etc. Also, not having the physical face-to-face can make any quiet pauses more awkward, especially when there's lag. If you can, I suggest holding casual "virtual coffee" conversations with colleagues from time to time. This can help with dampening the stressful awkwardness after a while.

Food for thought regarding the inherent safety of Zoom:
https://owshowe.com/2020/07/06/zoomed/