Good news is there’s been quite some rumors about the new M4 MBA gaining a 3rd TB/USB port. But even if that doesn’t pan out, there’s plenty of USB-C hubs around, also such for just data w/o video or networking ports. I have been happily using this one for a while at one work station.
https://www.amazon.com/PULWTOP-Delivery-Support-Multiport-Chromebook/dp/B0BND5487P/
Several others around my lab have bought this one and seem perfectly happy with it.
https://www.amazon.com/UGREEN-Powered-Adapter-Splitter-MacBook/dp/B0D9Q9WCLX/