According to Logitech’s support page, the problem was caused by “an expired certificate” required for the apps to run.

Macworld If you’ve been having issues with your Logitech mouse on your Mac, it’s not you, it’s them. Logitech has issued a ...

Logitech users on macOS found themselves locked out of their mouse customizations yesterday after the company let a security ...

Logitech's Options+ and G Hub apps on macOS stopped working after their code-signing certificate expired, leaving users ...

Logitech mouse users on macOS (myself included) woke up on Wednesday morning to find they were locked out of their mouse ...