"Honestly not sure why sub-d still alive" Because in actual day to day practice there are many models that are just an order of magnitude faster and more efficient to build in subdiv rather than in CAD, especially if the provided concept isn't a fully locked technical drawing and if the design will be subject to tweaks…
Well, details like on this helmet absolutely cannot be distorted/elongated/stretched in CAD - that's just not how CAD surfacing works, and that's precisely why I showed this practical example ... Of course a simple grenade or belt buckle (or even a complex firearm, especially if a degree of improvisation is allowed) is…
CAD software is becoming more common for hard surface work. I'm seeing some really cool examples of people combining CAD + bevel shader baking (new in Toolbag 5 but also possible in some other apps) as an alternative to the traditional high poly/sub-d workflow. Ie: https://x.com/KazamiXin/status/1844364753248059534