There is a version of openssl 1.1.1m and quic which would help the current situation. I also love Openssl 3 but a many of the servers and languages are not openssl 3 compliant yet. Also Apple OS X reacts nastily to openssl 3 as a server. let us port openssl 1.1.m + quic . I am working with Openssl to convince them to merge the quic patches as mainstream.
security/openssl is 1.1.1m, and 14.0-CURRENT is also 1.1.1m, 13.0 is 1.1.1k but we don't upgrade it unless a very good reason. stable/13 is already 1.1.1m so 13.1 and 14.0 will have 1.1.1m (or later) when release.
Li-Wen , You need a security/openssl111-quictls and security/openssl3-quictls , not in the src/mainstream. Rational is that not all the apps are ported over to openssl3. Currently security/openssl-quictls should be rename security/openssl3-quictls . This URL https://github.com/quictls/openssl/tree/OpenSSL_1_1_1m+quic should be what security/openssl111-quictls is based on. As for updates, https://www.openssl.org/ issue.
This was added to ports security/openssl-quictls on 2021-03-06 https://cgit.freebsd.org/ports/commit/security/openssl-quictls?id=7ac3b599415a5206334535d93844893270622e9a