A notoriously murky area of single-page application (SPA) development is SEO. Depending on who you ask, search engine crawling of client-rendered content is either totally fine, fine as long as it's synchronous or not at all fine.
Due to the confusion caused by all this conflicting advice, I regularly see the question "is my Vue SPA okay for SEO?" come up in places like the Vue.js Developers Facebook group, the Vue.js Forums, and r/vuejs on Reddit.