Over the past 8 years that has basically solved every bug all my colleagues ran into with MacOS. At some point my boss wasn't getting calendar notifications anymore for a couple weeks, "did you try and reboot?" fixed it in 5m. He later mentioned he hadn't rebooted in 7 weeks.
I don't understand why people treat Apple devices like unbreakable analog AM radios, they're very complex computers like any Windows or Linux machines, with a huge state machine beneath it that is easier to reset daily/weekly than to keep working properly for months.