How about Discourse Support Google AMP?

[rrit (Ayke)]

There is another nice “new” technologie - also working for non-amp pages:
Signed exchanges (SXG)

Signed exchanges (SXG) allow Google Search to prefetch your content while preserving the user’s privacy. In practice, this means that both AMP and non-AMP results shown on Google Search may prefetch a few key resources (such as HTML, JavaScript, CSS, images, or fonts) in a privacy-preserving manner, if the associated website supports SXG.

When the user ultimately clicks the result, the web page starts rendering much sooner since key resources are already available, leading to a better user experience. This could mean a lower Largest Contentful Paint (LCP) score for your content. While Google Search doesn’t consider use of SXG as a direct factor in ranking, the lower LCP may affect ranking because page experience will be a ranking factor.