I created a thread on this, but posting it here as well (admin, please feel free to delete the other thread).
With the last major update (I'm on 6.7.3329.24 (Stable channel) (64-bit), on Windows 10 Version 22H2), I have had problems printing.
For example, if I'm in my Zen cart shop and I click on the invoice button to print an order invoice, a new tab pops up with the invoice, all good. But, pressing Ctrl-P to print, nothing happens, or nothing appears to happen (selecting Print from the menu also doesn't appear to do anything). From this new tab I also can't Alt-tab to the previous tab, I have to manually click another tab. Then I can Alt-tab back to the invoice tab and the print dialog is magically there and works.
It's as if the print dialog/preview page is being created but not shown, and then it is holding the focus so you can't do anything else like Alt-tab etc.