The term SEO refers to Search Engine Optimization. And Quasar covers this aspect too through the Quasar Meta Plugin.
Quasar Meta Plugin
The Quasar Meta Plugin can dynamically change page title, manage <meta> tags, manage <html> and <body> DOM element attributes, add/remove/change <style> and <script> tags in the head of your document (useful for CDN stylesheets or for json-ld markup, for example), or manage <noscript> tags.
Take full advantage of this feature by using it with Quasar CLI, especially for the SSR (Server-Side Rendering) builds. Note that for a SPA (Single Page Applications) the meta tags are added at runtime and not supplied directly by the webserver (as with SSR builds).
TIP
This Quasar plugin has the most tight integration with Quasar and so it has the best performance against any other similar solution.