Hi @hsu, thank you for your suggestion. However, PiP window in Arc is absolutely custom while Orion uses the native PiP window managed by WebKit, and we don't have direct access to customize that with enhanced gestures.
While we appreciate the suggestion and agree that such gestures would provide a more intuitive Mac-like experience, this would require implementing a completely custom PiP window which would need significant changes that aren't feasible at the moment.
For now I'm going to mark this as NoFix, however if there's enough votes for this particular feature - we might get back to it and reprioritize this in the future.
Thank you very much for your contribution and for helping to make Orion better!