Hey Dimi, in the meantime i played with brizy using a free account to check it out.
But this experience left me with some concerns.

I noticed that the builder is quite slow (updating and showing changes on the frontend) - compared to elementor pro.
More advanced features are not integrated like using clamp function for font sizes.

I ran a googlepagespeed test on one of your templates and it got a 35 on mobile.. Why so slow? Not good for building landingpages when running ads.

Since it's a standalone builder and no plugins are available, how are things handled like cache, spam protection (google recaptcha is not an option due to gdpr) and so on.

I could not upload a .avif image ??

TIA