[nononononono__]

Your perspective seems to be purely based on optimizing for screen real estate. I don't use a tiling VM for the efficient use of pixels but for the usability benefits they provide. Useless gaps are useless when optimizing for use of pixels for content that is relevant to you. I like to have some visual "breathing" space between object I look at for the same reason passe-partouts are a thing in art for a very long time and pauses matter in music.

[harperlee]

Yes bit shouldn’t that be the role of the application, that decides to either put info too near the edge or not? You should treat your borders as edges and not put letters too near them, leaving breathing space for the fact that who knows what’s beyond.

[nononononono__]

No. I want to define global behavior and don't want to rely on all applications doing that. Application windows are the objects on screen I want space between, that space should be visually reliable and consistent independently from the applications design and color.

I don't even want to convince people this is right way to do it and just want to make clear there are different perspectives and for some visual composition is more important than information density on screen. I get this might be important for a laptop but running three 4k displays I find it important to clearly visually distinguish all the things on my screens at a glance and also to enjoy an uncluttered but spacey desktop.