How to select overlapping objects in 2.8+?

I’ve found this answer: How to select overlapping objects

Unfortunately it doesn’t work for me. I Alt+RMB and Alt+LMB but nothing happens. And the official document linked in the answer is not alive anymore. How to do this in 2.8? Is this shortcut configurable? What’s its name in keymapping?

It works in 2.93.1, did not know about 2.8, check your keymap under 3D View for Alt Right Mouse.
You can filter by keys to find it easy.

Thank you! It seems like that I accidentally changed it.