I think the original workflow suggestions are well worth submitting as feature requests, especially the mode indicator, double-tap bypass and faster access to the looper controls.
Those are small UI changes that could make a noticeable difference in daily use without changing the overall Stadium workflow. - I got help from https://www.soundstorexl.dk/
On the capture side, it also sounds like Proxy still needs development, particularly for high-gain tones and the noise some users are hearing as notes decay. Whether Line 6 continues improving Proxy or eventually adds support for NAM, the important thing is that users can get consistent and accurate results without complicated workarounds.
Stadium is still a new platform, so I would expect improvements over time. Line 6 has a good history of meaningful updates, but detailed reports with examples, settings and audio comparisons will probably be more useful than simply saying one platform sounds better than another.
