For me using Webpacker with rails was a nightmare in the last two years. The move to 3->4 was painful as 25% of my projects started to move to 4 and no longer

For me using Webpacker with rails was a nightmare in the last two years. The move to 3->4 was painful as 25% of my projects started to move to 4 and no longer worked with 3. So I was stuck with some legacy packages during a time I was upgrading from Vue 2 -> 3. AFAIK they Rails didn't even get to Webpack 5 in practice by the time I left. Vite came to the rescue at a perfect time.