HTTP/2 multiplexing Limited by persistent connections per server?

[Chellini]

Hello,

I have been told recently that HTTP/2's multiplexing capability is limited by the number of persistent connections per server...being the default of 6.

As far as I have understood, even *one* HTTP connection will allow all data from a site to multiplex over HTTP/2, with little to no "blocking" phases to stop the transfer of the site from happening.

Are there instances of "blocking" with HTTP/2? Is it affected by persistent connections like HTTP 1.1?

Thanks for the help everyone.