Memory Saver not doing anything

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Description of the issue: I have tried all three settings of memory saver, and no matter how long I wait, the tabs never get put to sleep. The browser is using a lot of RAM because of this.

Steps to Reproduce (add as many as necessary): 1. Turn memory saver on 2. Wait 3. Tabs don’t get put to sleep

Expected result: Tabs put to sleep, reduce RAM usage.

Reproduces how often: 24/7

Operating System and Brave Version(See the About Brave page in the main menu): Brave 1.92.134 (Official Build) (64-bit)

@Joyborne