How do you bring back lost window if CTRL +Shift + T or CTRL+Z don't work?

If it CTRL+ Shift+ T has worked to bring back (the window with all the tabs) in the past, on the same computer, browser etc. CTRL + Z (first time attempt) also doesn’t work. What are the alternatives other than going to menu the (hamburger icon) History and clicking on each website one by one (wastes time, so not really an alternative)? In Firefox (mainly) but or Chrome, or Edge? (Edited)