I'm on Beta and I see the feature. Worked when I was scrolling the feed. I clicked back, and it asked if I'm sure I want to exit the feed. Perfect, I can resume doom scrolling.

That won't stop me from opening the communities left side bar on purpose, then realizing I can't go back to the feed to continue doom scrolling where I left off. But that's on me lol
(Also side note I don't know if it's just me or if it's my phone, but uploading photos often fails. My work around is closing this app. Opening my photos app and then reopening voyager.)
Edit: also thanks so much for implementing a control fix for this! I appreciate it :)