There are some tools out there that will allow you to bind hotkeys (or at least provide a widget) to send brightness-adjustment commands via DDC/CI over the HDMI/DP cable to your desktop monitor. This may improve your UX. My 2015 and 2021 Dell monitors both support the functionality, with differing degrees of finesse.
Non-exhaustive list:
Linux: https://github.com/ddccontrol/ddccontrol || https://github.com/rockowitz/ddcutil