Some SE (ex: Gaming) question counts/flow rates are still pretty low, which makes me want to read all the new questions and hope I can help someone. Is there a way to show questions new since my last visit? If not can we add this feature?
This would actually be a very good idea. Some other Q&A sites (e.g. https://root-forum.cern.ch/) show a small separation line for questions active since your last visit.
You can have all new questions sent to your email every day by creating a new filter:
No need to even visit the site.
If you go to the bottom of the front page there is a link to "Browse the complete list of questions", and once there you'll find a "newest" tab.
It doesn't keep track of when you were last around, however.