I had fun this week with using google meet to share my desktop it became so slow that I could not communicate effectively. There seem to be two causes:
Google meet is less effective on Firefox than on Chrome. This could be by design. Moving from Firefox to Chrome for the sharing made a big improvement, but did not fix everything.
The second issue was found using top. I had a number of instances of rg that started to use 100% of the CPU. This coincident with VS Code starting searches that it did not finish.
In the end it came down to the small gear icon shown below. It needs to be in the “Use exclude settings and ignore file mode”
Developer Rants 