You can set a mailbox rule, that when a message is both in trash, and is a Meeting request, move it to the inbox (or a folder/area of your choice).
Screenshot is OSX which I imply that you are using. This would be possible on Windows too with a similar approach.
Indeed, it was a more wide-spread and general issue with Google.
However, I had opened a formal trouble ticket with them, which eventually got recognized, acknowledged, escalated, worked upon and resolved, by about 10:30 am PST 8/23/19.
However, you may need to still purge your calendar cache files:
go to calendar.app, go to settings, go to accounts, ...
Launch System Preferences
Select Internet Accounts
Select Add Other Account…
Select CalDAV account
You can then configure the calendar to synchronise with. The calendar must support CalDAV to work with macOS.