Dispute the taskbar problem it has all the same buttons a normal windows window has, minimise, expand and kill. The only thing it hasn’t got is something it doesn’t need, a scroll bar. So what you are asking for is already there. If you want it to open at a different size that’s another issue, and it might actually already be possible using preferences, but how hard is it to either double click in the title bar, or to hit the other esize button?
Sorry about all the typos, I’m doing this on a phone and its reekey hard to fight off autocorrect at this size!