Difficulty identifying stack for site

I'm familiar with the LAMP, MERN, MEVN stacks etc but for a full-stack application I'm building I'm using:

• Netlify to host ( uses ubuntu image to carry out build process)
• Cloud Firestore ( noSQL DB)
• Nuxt.js (Framework ontop of Vue.js)

And I have some cloud functions that use Node.js but I wouldn't categorize that as a 'backend'. So my question is how do you determine the 'stack' your application uses? In this case would mine be: UFN ? (Ubuntu, Firestore, Nuxt)