Oh, I already https://www.blackhatworld.com/seo/proxies-are-getting-caught-by-payment-processor.1627919/post-18150258on your statements in thread next to this one and provided proofs showing that your claims are far from reality. Among the proofs, I included a link to the official https://datatracker.ietf.org/doc/html/rfc1928, which clearly states that this protocol supports UDP-QUIC.
And the claim about PayPal only working via QUIC http/3 -- where did you even get that? That’s nonsense. PayPal requires HTTPS (literally like almost all resources today, lol). Here’s a https://developer.paypal.com/api/rest/reference/info-security-guidelines/. itself.
I think it’s somewhat unfair to mislead forum users with incorrect information. VPNs and proxies are different products and there are many important applications where encryption supported by VPNs is required and not always available in proxies. But why write information that is knowingly wrong?
After all, without any lying, VPN is the only solution for many use cases where proxies simply don't work.