My apologies for a late early review(!?!).

I might be confused about this, but I see that this specification uses these HTTP2 settings

0x02	 SETTINGS_ENABLE_PUSH (a BCP14 “MUST”), and 
0x03     SETTINGS_MAX_CONCURRENT_STREAMS (a BCP14 “must”)

RFC 9114 reserves these in the parallel HTTP/3 registry (https://www.rfc-editor.org/rfc/rfc9114.html#iana-setting-table), and says this about these reserved values in https://www.rfc-editor.org/rfc/rfc9114.html#section-7.2.4.1:

7.2.4.1. Defined SETTINGS Parameters

Setting identifiers that were defined in [HTTP/2] where there is no corresponding HTTP/3 setting have also been reserved (Section 11.2.2). These reserved settings MUST NOT be sent, and their receipt MUST be treated as a connection error of type H3_SETTINGS_ERROR.

Is that going to be a problem? 

I’m also wondering if you need in-order delivery of results across multiple QUIC streams. If you do, could you please let me know?

I hope this is helpful. 

p.s. I should also let someone know that the HTML version of this draft says it's -00 in the heading, but the date matches the date for -01, so I THINK I was looking at the right version, but I've never seen that before.