there is isn’t a way to control the fan speed on Linux my laptop is Dell g15 5515
on windows i was using alienware command center
Probably not. But try installing lm_sensors and see if they are detected:
lm_sensors - ArchWiki (archlinux.org)
My Legion 5 - can’t see the fans, but there is a app for extreme cooling, which helps.
Sorry, no sensors were detected.
This is relatively common on laptops, where thermal management is
handled by ACPI rather than the OS.
As expected, cannot be done 
; ( very sad