auto-type is much more secure than using the companion keepassxc browser extension to fill your passwords since it didn't need a connection between your browser and your password manager. it also removes the chance of some dodgy website having a username and password box off screen and using it to trick the atuofill feature.

one minor inconvenience with auto-type is that your passwords don't auto fill by themselves, but I have it set to the hotkey alt+x which makes it quick to trigger with my thumb and after doing it this way for nearly 2 years now i barely notice

another downside with auto-type is that not all websites put their full names in the browser title bar so auto-type won't show you your related passwords in some cases. to fix that you can install a browser extension that puts the full web url in titlebar https://github.com/erichgoldman/add-url-to-window-title