PageSpeed Insights no longer working on my PC. (https://pagespeed.web.dev/) / Any Solutions? - pagespeed-insights

PageSpeed Insights (https://pagespeed.web.dev/) is no longer working on my PC. It just spins. I've tried using multiple different URL's to analyze. I've tried it in Incognito. I've cleared cache. I've reinstalled Chrome. I've even tried it with the Edge Browser.
This seems to correspond to the new Pagespeed Insights Release. I've never had a problem with this until recently. This has always worked before.
I don't know if it's a cookie issue, or the new PageSpeed Insights release, maybe a new firewall issue that cropped up. Or, does it now require a KEY or something? Or, could my IP have gotten blocked by Google for this?
Note: I can run Lighthouse from Inspect. That works. But not https://pagespeed.web.dev/
Windows - Chrome is up to date Version 96.0.4664.45 (Official Build) (64-bit)
I'm baffled. It's probably something obvious but I can't figure it out.
Any ideas out there?
Thanks,
Bob

For us, the lighthouse report in Chrome dev tools is not working behind a VPN. It was working earlier. Not sure what is the issue.
We were looking to test new page templates on the dev environment. Unfortunately, the PSI is not warming on staging on a VPN

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How else can I review the responsiveness of a local hosted app without using dev tools?

I'm working on an app on my machine and run it on local host. Sometimes browsers dev tools are not accurate and once I am making the changes in my code and then run, it doesn't look like how it was in dev tools. I'm talking about some alignment, responsiveness, not about styling, colors etc.
When I am comparing my app in different browsers it doesn't look the same in all of them, so I'm no sure which one is actually the accurate view.
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