https://hedzr.com/devops/linux/linux-cinnamon-fractional-scaling-in-hidpi-mode/
as title said, how to enable font fractional scaling in cinnamon GUI environment
fractional scalingcinnamonhidpimode
https://9to5linux.com/new-raspberry-pi-os-release-adds-support-for-setting-hidpi-scaling-updates-labwc
Dec 4, 2025 - Raspberry Pi OS 2025-11-24 is now available for download with support for setting HiDPI scaling, updated Labwc Wayland compositor, and more.
raspberry pi osnewreleasesettinghidpi