There is Vanilla OS, which is based on Debian Sid, is immutable and rolling release.
As for freshness/pace of updates, it really is a matter of taste. Even though I've been using Debian stable in one form or another for nearly 25 years, and it's still my platform of choice for servers, when it comes to desktop, I find it hard to move away from ooensuse Tumbleweed, cause TW makes even Fedora feel old and stale.
As for freshness/pace of updates, it really is a matter of taste. Even though I've been using Debian stable in one form or another for nearly 25 years, and it's still my platform of choice for servers, when it comes to desktop, I find it hard to move away from ooensuse Tumbleweed, cause TW makes even Fedora feel old and stale.