In a normal military this would be a pretty big deal, but Russia has long used the strategy of "keep throwing bodies at them until you win". That's also likely the reason their navy and air force are a joke as that strategy doesn't work so well when you have a finite number of craft to send those bodies on. There's a reason that Ukraine's tiny well trained military has been able to use guerrilla tactics to wipe the floor with Russia's military.
So unfortunately this is likely to make little if any difference, Putin will just find a new piece of meat to stuff into that uniform and then kick him towards the front line. What does make a huge difference though is every time they manage to destroy a piece of Russian hardware (be that a boat, plane, tank, or artillery) as Russia has a very hard time replacing those unlike their practically unlimited supply of cannon fodder.
Bold of you to assume the MAGATs (including the felon in chief) are smart enough to understand the implied threat/warning.
As an outsider looking in this seems very weird. I guess the king of England is also technically the king of Canada, but I'm failing to see why that matters even if it's incredibly strange. I know in England the monarchy is almost entirely symbolic with nearly all the actual governing done by the PM and Parliament. I would assume Canada is the same. Does the monarchy have any actual power in Canada? I believe in England they have a (incredibly rarely used) veto power over parliament but that's it. Is Canada not the same?