Has anyone encountered Date Range Filtering Standards in any business areas?
There can be some more approaches apart from the ones shown in the question. For e.g. the user should be shown a calendar indicator if they can pick from a calendar next to the input box. A detailed answer can be found here on UX.StackExchange: Better way for users to select a date range
Material Design Guidelines: https://material.io/components/date-pickers#desktop-pickers