Hi,
I waited quite a while to upgrade from Sonoma, since I have a lot of audio (DAW and plug-ins) software that need updates and qualification for new versions of macOS. Since the upgrade a few months back, it has been rock solid and no issues to report.
macOS upgrades are dependent on the Mac model you are running and any software that may need updates/upgrades. Historically, older Macs have a "soft limit" on the version they can upgrade to, since the oldest ones still supported may not work well with any new functions, or simply don't have enough hardware power to run the latest macOS smoothly.
C