This particular problem where the site becomes non-responsive after a change of networks _may_ be limited to Cloudflare servers The sites mentioned in comment 6 and comment 8 are both cloudflare HTTP/3 sites. Seeing the same issue here, a Shopify site that looks to be hosted by cloudflare: https://www.windsorstore.com/ And another site on cloudflare: https://wordsift.org/
Bug 1910991 Comment 10 Edit History
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