I think the extension icons are too far apart, wasting space in the address bar

I have to agree with Hot CakeX. If it's too compact/small it starts to look jumbled and cramped together, and if you're like me that uses a large mouse arrow icon it can cover over two extension icons at once. The icons on Google Chrome are too small and cramped close and need more space apart. Edge in my opinion sort this out by giving more space distance and larger size to the extension icons.