Debian has an effective Rolling distribution through testing than can get ahead of Arch.
At some point they freeze the software versions in testing and look for Release Critical and Major bugs. Once they have shaken everything and submitted fixes where possible. It then becomes stable.
The idea is people have tested a set baseline of software and there are no known major bugs.
For the 4-5 releases Debian has released every 2 years (Similar to Ubuntu LTS). Debian tends to align its release with LTS Kernel and Mesa releases so there have been times the latest stable is running newer versions than Ubuntu and the newest software crown switches between Ubuntu LTS and Debian each year.
For some the priority to run software that won't have major bugs, that is what Debian, Ubuntu LTS and RHEL offer.