Not sure why this is downvoted. HTTP3/QUIC is a lot more complex to implement than SSH. SSL is a very well studied standard, but it is clearly a committee prod

Not sure why this is downvoted. HTTP3/QUIC is a lot more complex to implement than SSH. SSL is a very well studied standard, but it is clearly a committee product with lots of features built on enterprise standards like X.509, and SSH is made by a few protocol engineers with a razor sharp use case. It is easy to see why someone who audits parsers for a living would be much more comfortable with SSH as compared to a something over HTTP/SSL/QUIC.