Unless the BIOS locks down control of fan speed (as is the case with some Dell models), you should be able to use fancontrol to modify your fan curve.

You can install it with sudo apt install fancontrol, then you would run sudo pwmconfig to run fan tests and create a config file. To reduce fan noise you would typically raise the minimum trigger temperature to engage the fans.

If the tests came out alright, enable fancontrol with sudo systemctl enable fancontrol --now.

For more information and suggestions, take a look at this ArchWiki entry.

A reminder: if you care enough to validate the checksum of your recently downloaded ISO, don’t follow links from a stranger. Navigate to the distributors website and find the checksum yourself.