So connect over cellular or personal hotspot, then connect to WiFi to avoid burning your data. This is definitely becoming more common. I discovered the workar

So connect over cellular or personal hotspot, then connect to WiFi to avoid burning your data. This is definitely becoming more common. I discovered the workaround purely by accident, when I took my laptop to work (which is unusual, it's a personal device not used for work but I needed to do some work on files that were on it). It was logged into my Tailscale when I last turned it on at the house and I discovered that it reconnected fine as long as it didn't have to do the authentication over the work network.