Works fine for me...

I search the title and got 4 references. 1 for the <title> tag, 2 for OpenGraph/Twitter meta tags and of course the page header.

Unless you mean something else.

For the record, browsers like Chrome, Edge, Opera, Brave and many more others all share the same rendering engine. So if something works in Opera, it most likely works in Chrome as well.

You may have dealt with persistent cache issues perhaps.

This is correct if "page heading" is overridden. The text you'd enter there will override the h2 tag.

Don't use the "page heading" feature in the menu item.