I haven’t used Tailscale [1][2], but is this very easy (UI/UX) to turn off temporarily? Does NextDNS assign a unique IPv6 address for each account to know this

I haven’t used Tailscale [1][2], but is this very easy (UI/UX) to turn off temporarily? Does NextDNS assign a unique IPv6 address for each account to know this is my account and to apply my chosen filter lists? I use NextDNS on my devices and turn it off temporarily when something I need to access doesn’t work because of something getting blocked by the filter lists (I do manage the allow list on my NextDNS account for any permanent or long term changes). Seems like this doesn’t support multiple NextDNS profiles (says it’s in alpha) and the UX looks a bit rough to me. [1]: I don’t seem to have a need to use Tailscale so far since the devices in my home network are shutdown when I travel and I don’t need access to them at all. [2]: Besides, I don’t wish to signup for something through a Google or Microsoft or GitHub account (or other third party account), which are the only options supported by Tailscale. I’ll consider Tailscale if/when it supports a simple email/password account registration.