hangouts meet does 1080p (whether it works now during the covid pandemic I don't know) and is Google's replacement for the regular hangouts. it has been available for companies and has been part of g-suite for enterprise since 2017.

Where I work, it defaults the webcam resolutions to 360p and we can only choose 720p for our 1080p hardware.

Anyway, my biggest concert is with lack of fluidity of slide/screen sharing.

It is not viable for presentations with animations or where the presenter needs to point with mouse/cursor to a specific point or area of the slide (for example, a point in a curve in a graph).

I work with this.

I'm struggling with this tools first hand. My impression is there a lot of opinions here from people which is not using these tools.

I think that in most VTC platforms, the tendency is to favor quality/resolution for screen sharing and speed/FPS for camera sharing.

It sounds like your case is less common but the idea is that a video or camera feed can handle more compression (and subsequent drop in quality) as long as it isn't choppy or dropping out. Alternately, a slide or document may have small text which would quickly become unreadable if the compression is too high. To prevent that, you get high quality but only 5FPS or whatever so people can read your document or slide.

Slides and docs don't usually need high framerates so it would just be wasteful to try delivering a mostly static, high resolution, low compression 1920x1080 feed of a PowerPoint at 15 or 30 FPS.

There are ways around this (even on a consumer PC) such as using something like OBS to switch between sources like a webcam, a video clip, or a screen cap and feed them to a virtual webcam (which can be selected in your VTC software as the webcam input). Alternately, there are dedicated switchers and mixers but they're usually reserved for studios or in-facility installations.

But again...you may not like the results even so. The webcam feed often trades higher FPS for higher compression.