Currently there is a lot of functionality that in theory does not require an account, although Voyager still prompts you to create one.
Whilst I now have one, I initially intended not to.
Either way, there are a good amount of features that could be adjusted to fit guest / offline accounts, including:
- Changing the guest instance
- Allow saving posts locally as guest (not synced, ofc)
- Allow changing subscriptions as guest (there's already some in guest view anyways, I figured being able to change them would be nice)
use Tor Browser.
If your concern is fingerprinting, that is undeniably the best there is out of the box.
If you want Tor Browser without having to use the Tor Network, Mullvad is basically just that; Tor Browser without the Network.