There's also a "know your audience" factor. If you're developing a SaaS for a tech product, maybe supporting the latest couple browser versions is fine. Website

There's also a "know your audience" factor. If you're developing a SaaS for a tech product, maybe supporting the latest couple browser versions is fine. Websites for volunteering probably have a wider audience among older generations using older devices. Ideally you'd know what browsers are visiting your site from analytics and support the relevant percentages.