If you're still confused, don't worry — VALORANT will add an explanation of Ranked Shields to the game's Rank Details screen for clarification. No, Ranked Shields will not recharge after use.

In Valorant’s Patch 10 ... Interacting with the STAT-COM will change the screen, while the snowflake should twirl when you left-click. Flex arrived with Patch 10 released on January 8, and ...