Assuming a fast reliable internet connection, how well does an overclocked raspberry pi 5 perform when video conferencing using popular conferencing applications such as zoom, google meet, ms teams and the like?
True, to some extent this is also an artefact of (comparatively) poor software optimisation for pi. In this case almost certainly zoom and others apps will be using cpu encoding/decoding rather than offloading.
For that kind of thing, you’re 100x better off getting an old enterprise uSFF workstation on the cheap. Whenever I can, I reach for a used Dell 5070 or similar if I don’t need GPIO. They eBay for about £40-50, have real NVME, x86, and the pentium ones are pretty powerful.