[PeterStuer]

Your hotspot just makes the untrusted hotel wifi available via your phone wifi. The networks between your computer and your target services can still inspect and alter your data. Tailscale, or more specifically the Wireshark underneat, sets up an encrypted tunnel so those "untrusted" intermediate networks can't do that.

[aembleton]

If my phone has a VPN to my home server, then it should all be encrypted.

[SXX]

Yes, but it wont work for sharing mobile internet because VPN doee not apply to tethering unless you have root. On Android there is also WiFi direct, but it's not very reliable and require proxy / not work for everything.

[SpaceNugget]

s/Wireshark/wireguard