Recently Chrome, Firefox, cURL etc announced their support for HTTP/3 (it was earlier termed as HTTP-over-QUIC).
How do you see its adaptation impact from perspective of changes in:
Applications (web-based, mobile, pure socket based etc)
Hosting infrastructures (web/app servers, firewalls, loadbalancers, CDNs, router, switches etc) & ISPs etc.
Security (new threats, vulnerabilities, landscape of VAPT tools etc.)
Congestion-control