So they are apparently able to index JavaScript sites by running them through Chrome but since this is computationally expensive they can only do this for some sites and with much delay (your site ends up in a queue). HTML is indexed the moment they crawl you site.
What Lemmy could do is “Server-Side Rendering” for Google crawler but it complicates things.
https://www.searchenginejournal.com/javascript-indexing-delays-google/335703/ “With Googlebot running on the most recent version of Chrome and JavaScript content being indexed faster than ever, it’s apparent that Google is getting better at indexing JavaScript.”
So they are apparently able to index JavaScript sites by running them through Chrome but since this is computationally expensive they can only do this for some sites and with much delay (your site ends up in a queue). HTML is indexed the moment they crawl you site.
What Lemmy could do is “Server-Side Rendering” for Google crawler but it complicates things.