[Vuejs]-Supabase + nuxt3 = Multiple GoTrueClient instances detected in the same browser context

The problem was that I had installed two different npm-packages for supabase, namely @nuxtjs/supabase (the nuxt3-supabase-package) as well as @supabase/supabase-js (supabase’s default js-client), this resulting in the warning. I kept only the nuxt3 client, which solved it.