YES, Squirrly SEO currently supports both the WPML and the Polylang plugins. It’s important to mention that the option to “Combine Languages in Sitemap” is currently only available for Polylang. For WPML, you will have separate sitemaps for each language that you will need to add to Google Search Console (GSC). Note! This will NOT affect your SEO in any way.
Additionally, we have an open Roadmap where you can vote for existing posts, discuss them, or add your own feature/integration requests. If an item on our roadmap gets a lot of votes, that tells us it’s something that a large segment of our users would find valuable. And that helps guide our development efforts.
[RELATED] Compatibility with Polylang Plugin