One of the tricks is to run a very thin and simple stack to get really low latency. No compositor, no DE, just a WM and X. And Ethernet.
It copes with Google Meet or MS Teams just fine, as well as any light development. I do all heavy lifting by SSHing to a huge workstation.
There are lots of nice options if one wants to purchase a brand new fanless desktop: Cirrus7, Tranquil, CompuLab, etc. And of course, fancy DIY with e.g. a Streacom case.
On the netbook, OpenBSD with cwm+xterm+gnufont+tmux plus mpv,gv,mupdf,nsxiv and sometimes links -g and a forked dillo. On SSH, I don't care even if I use wireless: I use Mosh and the remote server it's handled either by Tmux or Screen.
The latency on both are comparable.
Even if I had a different use case Pis are impossible to find at a price worth paying for. I'm starting to forget about them.