People love shitting on Purism on Reddit for whatever reason. Maybe they’re right? But I bought a Librem 14, use it as my daily driver, and I love it. I even had a problem with it after more than a year of use which Purism promptly fixed for no charge whatsoever. My experience with the company has been nothing but positive.
Surely there is some way to configure this on Windows. I’m so unfamiliar with Windows software anymore, but I’m sure that any firewall worth it’s salt would be able to increase the TTL on outbound packets.