Memory spike and no release on Supervisor

seeing this:

while this is logged:

Logger: homeassistant.components.version
Source: helpers/update_coordinator.py:151 
Integration: Version (documentation, issues) 
First occurred: August 20, 2022, 23:03:08 (6 occurrences) 
Last logged: 17:43:56

Error fetching version data: Error fetching version information from supervisor Cannot connect to host version.home-assistant.io:443 ssl:default [Try again]
Error fetching version data: Timeout of 10 seconds was reached while fetching version for supervisor

and this on binary workday happened almost at the same time:

Logger: homeassistant.components.binary_sensor
Source: helpers/entity_platform.py:778 
Integration: Binary sensor (documentation, issues) 
First occurred: 17:43:53 (1 occurrences) 
Last logged: 17:43:53

Updating workday binary_sensor took longer than the scheduled update interval 0:00:30

Checking the supervisor stats all is healthy , but the memory usage does reveal:

now, what does this indicate?
also, except for restarting,

how can we release that memory.
do we have a bug?