Sharing 4K videos during Teams Meetings

What is the best way to share high-fidelity 4K videos during the Teams Meetings? My customer, who is in a gaming industry, holds a regular meeting with board members and related stake holders to discuss about their product updates. This meeting requires sharing 4K videos that exceed 5GB, so they often experience lags in their videos. I was told that there's a significant quality drop for the guests especially. They are currently sharing the video via screen sharing not PowerPoint Live because the meetings must be recorded. What would you recommend to this customer?