-
SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
I am perfectly happy with Safari. Safari 15.6.1 scores 516 out of 555 on https://html5test.com. Chrome 104.0.5112.101 scores 528 out of 555. And Firefox 104.0 scores 466 out of 555. So I have no idea why people are saying Safari isn't standards compliant. It is barely behind Chrome and way better than firefox.
Anyway, https://caniuse.com/ is a much more up-to-date comparison if you're just talking web features. The broad-strokes overview:
What is this filter: url(#x) stuff on the title? All I found is this github issues (https://github.com/w3c/csswg-drafts/issues/3195), and I still don't understand how it works.