Fluent Design is great. It also comes with a couple of downsides., with only one downside. It only supports one a couple of predefined Frameworks and is not for everyone.
When I started to create an HTML/CSS based Framework that speaks the same design language, the first and foremost goal was to develop it with accessibility first.
Join me in this session where I search my lessons learned with you to help you bring better accessibility on the web, test it and provide a great user experience for everyone.