AnyMode looks like it runs client side, so how to search engines pick up content?
Great question! Google (80-90% market share) now waits for JavaScript to run before indexing, so all of Google’s global sites will pick up the content. Bing, Yandex, Baidu, and others mostly will not, though they will likely follow Google’s lead.
You can see here for more: https://www.javascript-seo.com/