@biomedmax on QOTO, yes.
1. In the web interface, go to Preferences > Follows and Subscriptions > Domain Subscribes > Add new domain subscription
2. Make a new subscription with the domain set to the instance you're interested in, e.g. "mastodon.social", and the target timeline to "Add new list"
3. In Tusky, go to Account Preferences > Tabs > Add Tab > List > "mastodon.social" or whatever instance you selected in Step 2.
I don't think this is generally applicable because my recollection is that domain subscribes are a nonstandard feature; QOTO offers them but most instances don't.