If I have a Google Calendar event link like this:
How can I add this to Apple Calendar directly (without adding the event to a Google Calendar first; I don't have a Google account)?
The full details appear to exist in that link (name of the event, date, time, and timezone). This seems like a trivial thing to automate. Searching the web for existing solutions is hard because all the results are instructions for syncing a Google Calendar to Apple Calendar via webcal or logging in to a Google account.