18.5 HTTP/3 download with quiche halts after a while
18.6 HTTP/3 multipart POST with quiche fails
18.7 HTTP/3 quiche upload large file fails
+ 18.8 HTTP/3 doesn't support client certs
==============================================================================
18.7 HTTP/3 quiche upload large file fails
https://github.com/curl/curl/issues/7532
+
+18.8 HTTP/3 doesn't support client certs
+
+ aka "mutual authentication".
+
+ https://github.com/curl/curl/issues/7625