Interesting panel arrangement!
That breaker you have pictured, and the two "spaces" you have boxed, are actually "off" by a half space. That is because of the weird way GE does things with double-stuff breakers.
With GE, they sell normal breakers that take a full space (they look like 2 of the main breaker) and clip onto the horizontal bus stabs. Remember your boxes are 1/2 space "out of phase" with where the actual spaces are.
They also sell 1/2-width "double-stuff" breakers that fit in 1/2 space and clip onto the vertical little "cruciforms" (well, not in this case) that you see attached to the bus stabs.
Look at space 1 (1/2 space above your green box). You can put a full-space breaker there. You cannot put a 1/2 space breaker in the top half of the space (because the cruciform is not there), but you can put a 1/2 space breaker in the bottom half of the space. On space 2 (intruded by the green and orange box), the top half supports a 1/2 space breaker, and the bottom half does not.
That means the only thing you can support in spaces 1 and 2 are either 2 full-size breakers (or a 2-pole), or two half-width (or a 2-pole double-stuff). You cannot do the *normal* thing of fitting four double-stuff breakers there.
And then, they did the same exact thing in spaces 3-4. (bottom half of orange, 2-pole breaker there, and half-space below that).
What a weird thing. I gather they did that for CTL reasons.
The upshot is that using double-stuff breakers in the top 4 spaces is a lost cause; it might as well be full-size breakers. You might as well reserve these spaces for GFCI/AFCI, which are only available in full-size.
The normal thing you do with a GE panel, sticking a 2-pole in the green straddle-space position and and another 2-pole in orange, is not possible because of this "feature" in the panel. The orange straddle-space position cannot be occupied.
That's it. Yet another full panel because somebody got to save a few bucks. I hope they really, really enjoyed that latté.