If your TLS traffic is intercepted, your digital property is at risk. Your financial records, healthcare records, everything flowing over your broken TLS connection. Advanced organizations are looking to intercept and record your data, exploiting the foundational flaws in TLS. They hope to decrypt it later with quantum computers.
There are many problems with TLS, from TSLI (break and inspect), CA certificate forging, Bleichenbacher based attacks (such as padded oracle attacks), weak ciphers (aka 3DES) which are vulnerable to sweet32, to the recent GNUTLS Man in the Middle (MitM) attack. It is time the world diversifies from TLS for VPN applications.
Nearly all existing VPN competitors are merely rebranded OpenVPN (which is a TLS VPN).
Nearly all existing VPNs use non-quantum resistant encryption.