If you keep some tabs at specific places you know where they are. Some websites are so bloated that every action has a cost (looking at you jira) and having only 1-2 tabs of the site open and searching within it is so much more sloppy. When you find yourself with >20 important tabs you should split them to groups or multiple windows. But just having them open isn’t bad.

You don’t need to see the titles (and you can always see them with vertical tabs anyway). There are good cases for having many tabs open. It’s just that chrome is terrible at dealing with them.

Even without any extensions, there is a shortcut in Firefox to search and switch to a tab by typing % on the address bar

They weren’t using OneDrive either