On: Why keyboard shortcuts don't work on non-US layout...

[wodenokoto]

In order to write backtick, I have to shift-click the key left to backspace and then click spacebar.

Tilde ~ is similar: option-click and then space.

This makes the out-of-the-box keyboard shortcut for switching window on macOS unreachable on my macbook pro.

There are several default shortcuts on osx that are unreachable from international keyboards.

[kolinko → wodenokoto]

Perhaps you can remap tilde to some other key on the keyboard?