Display size but not resolution

id like to revive this question in the mroe appropiate category to see if someone knows a solution to this.
I have two display, one is 2560 x 1440
and another is 1920 x 1080, the thing is, the second display, shown in yellow is bigger than it is shown below:

my question nwo is, is it possible to somehow resize the display so it respresents the actual size of the monitor? since right now going from one display to another is of course quite different to what both displayed sizes,

Cinnamon doesn’t report the monitor as the correct size on output to my TV. It say’s it’s 72" but it’s actually a 43" TV. But. It does display correctly at 1920x1080 HD and fills the screen. Sizing is good.