I just use it for any tab which I always have open, so they're organised on my taskbar. That way I don't end up with 40 tabs of like 5 different websites that I just pathologically open up a new tab for each time I revisit, having to scan through them all each time I want to switch to find one from before. That's an ADHD thing though. Effectively for some websites I want the tab to always be pinned and easily accessible with a large icon for a visual cue, and this way that all happens automatically