I've done my best to make my site accessible using the WCAG guidelines and some validation tools such as axe, achecker.ca but I feel like I'm lost in a sea of thousands of 'suggestions' but few hard and fast rules to follow to guarantee the widest reach possible.
I don't really know anybody using accessible browsers so it is hard to get real-world knowledge. What is the most popular browesr at this point - is it a full on browser or just a plugin for FireFox (or Chrome). Do they react different between Windows and Mac?
Are there any mobile accessibility options? What about for iPads/tablets?
You could check some articles [2], talks [3] or courses [4] to get the basic understanding of accessible development.
[1] https://webaim.org/projects/screenreadersurvey8/#browsercomb...
[2] https://github.com/brunopulis/awesome-a11y/blob/master/topic...
[3] https://github.com/brunopulis/awesome-a11y/blob/master/topic...
[4] https://github.com/brunopulis/awesome-a11y/blob/master/topic...