it reads like you're implying that nginx doesn't have http2 capabilities (perhaps you're not, if so, I'm sorry). But you can use http2 with nginx - "listen 443

it reads like you're implying that nginx doesn't have http2 capabilities (perhaps you're not, if so, I'm sorry). But you can use http2 with nginx - "listen 443 ssl http2;". You just need nginx 1.9 or above.