As a web developer, I find this to be anything be true. Safari supports loads of cool features that clients ask for, like native css carousels (css snap points), and blur effects (backdrop-filter). Chrome, does not.
Here's an example that broke many many sites that use OAuth2 Auth Code Flow for login (including the main UI portal my company provides clients): https://bugs.webkit.org/show_bug.cgi?id=194906
There's also been issues with the handling of 3rd party cookies that create issues for login systems, js stdlib functions being incorrectly implemented, etc.
Chrome generally implements everything new and shiny, no matter how underspecified it is, and with blatant disregard to whether or not it breaks the web.
Software has these everywhere. iOS and Android homescreens are carousels. Netflix 'rails' are carousels. CSS Snap Points is a way to create native snapping scrolling views, which Safari and IE supports, but Chrome does not.