Does anyone use these PWA themes? Or does everyone just use the Venia theme and customize it?
https://www.mageplaza.com/blog/magento-2-pwa-themes-free-paid.html#6-best-magento-2-pwa-theme-free--...
And are any of these compatible with the Commerce Cloud page builder?
We currently are using the Venia theme and customizing it but it is taking way too long and too many customizations that are slowing the site way down.
I have not tried all the PWA themes of these parties. I just started using Tigren's and found it to be quite good.
However, what bothers me more are the add-ons that come with it. It takes quite a few Add-ons to build a good PWA. I found a few others like Landofcoder's Magento 2 Multivendor Marketplace PWA Studio Solution.
It is best that you refer to the demo and ask the parties for advice