HTTP/3 is becoming more popular as a web protocol and its adoption has seen significant growth in the past year, particularly among mobile browsers like Chrome Mobile and Safari. While major search engines and social media platforms continue to use primarily HTTP/1.1 or HTTP/2 for their site crawling bots, there are some indications that usage of HTTP/3 may be on the rise. Overall, continued growth in HTTP/3 adoption could have significant implications for internet performance and security. Reference(s): https://blog.cloudflare.com/http-3-traffic-growth-in-2023/