Mouse pointer left-click and double-click fail in macOS Golden Gate

At least one other user recently reported issues with right-clicking on macOS, and it turned out that user had several 'crapware' utilities installed (BrickMyMac, NordVPN, etc.), which are known to cause issues.

Have you rebooted your Mac? If not, that's the first step. If that does not help, then see if the problem is present when you boot in safe mode. That process performs some system cleanup and clears caches, and also disables 3rd party extensions that may cause problems.

Start up your Mac in safe mode - Apple Support

If that does not correct the issue, test in a new user account. A newly-created user account will have all settings at default, and if the issue does not occur in that new account then it provides guidance on what may need to be changed to correct the issue.

Add a user or group on Mac - Apple Support

Once the testing is complete, the new account can easily be deleted.

Delete a user or group on Mac – Apple Support

Those steps will help to isolate the problem.

It might help to download and run EtreCheck, written by a long-time forum member (who has also posted in this thread). The free version is fine. Post the full report using the Additional Text button. No personal information is revealed. 

@etresoft, the failure of the second (post-pause) tap in file renaming has been reported by others previously. Definitely a bug in macOS, since the second tap does work in Icon view...just not in List or Column view.

For the OP, bugs should be reported to Apple here:

Feedback - macOS - Apple

I was having issues with my Magic Mouse left double click so when I went to accessibility, pointer control and moved the slider for double click speed all now works. I have the slider at the same position as before but just sliding it back and forth reset the mouse.

I just found that myself. In 27.2, Apple has changed some really low-level logic with respect to how clicks and taps are registered.

In my case, I found it through Finder rename. I used to be able to tap on a file name, wait a sec, then tap on it again to rename. That no longer works. This is because I'm using "Tap to click" in System Settings > Trackpad. This setting is no longer reliable. I can still do a rename, but only if that second tap is actually a click, a physical press down on the trackpad. Tap is no longer good enough.

But curiously, there really is no physical press possible on this trackpad. It's all haptic feedback. So this is clearly a deep software problem. As such, it could apply to any input device and method in any context.