Hello @draemr,
My name is Henry and I am happy to assist with your inquiry, and appreciate you contacting LastPass Support!
I am sorry for any confusion this may have caused you. The LastPass app for Mac Desktops is now distributed through the Apple App Store. Due to some limitations, it is not possible to update the existing app to the new version which is why it is needed to manually remove the old version to download the new one from the app store.
Please let me know if this helped or if further assistance is required.
Thank you,
Henry | Customer Care