I slapped together a little shareable sprint calendar tool, since I was constantly finding myself having to click too many times in other tools to get what should be a simple at-a-glance overview. I now use it almost every day, during team or stakeholder chats at work.

My team runs with: https://sprintcalendar.com/3-week-sprints/start-2020-12-03/r...

I've only tweaked it a bit since then, after sharing it and getting some feedback from others who found it useful.