Your English is fine! I just meant to point out that Arcade is extremely limited for what it can do in terms of symbology, and feature class filters are just basic SQL expressions, so we don't have quite as many tools in this situation.
You could do what you're describing in a Dashboard Data Expression, but sadly, not in the map viewer. There's no way to have a dynamic filter statement in the map, only a static one. So you could filter by a specific date, but not on the latest date per name.
- Josh Carlson
Kendall County GIS