There is a neutral wire on the far left switch so I know it’s from somewhere in the box.
No, I doubt it. It's probably a re-colored white wire (looks bluish to me). I'm guessing that it's a "dead-end" 3way switch with white (blue) and red as the travellers, and switched black wire returning to the other switch. By code if you use the white wire from a 14/3 as a hot wire, you have to 'designate' it as something other than a neutral (usually tape or a marker like a sharpie). If that is just a vanilla 3way switch, having a neutral on it would create a direct short half the time. It's also definitely not kosher to switch neutrals most of the time.
If all 3 insulated conductors trace back to the same 14/3 in the same sheathing & opening in the box, then it is most definitely not a neutral.
The splice in the wirenut to the back left is most likely the neutrals.
It is still kind of hard to see what is going on in that box, even though it's not very full, relatively speaking.
If the switch on the right (the one you want to replace) just controls a light, then the 14/2 cable that is the switch leg will have a black wire tied to the switch, and a white wire tied to a splice with all the neutrals (usually). The other black wire on the switch is probably the hot feeding the switch, and might be tied to another splice (the wirenut pointing at the camera I'm guessing, looks like 4 wires...power into box, power back out of box, and two 'pigtails' from the splice to feed the two single pole switches).
If the neutral splice is 5 wires or so, I hope for your sake that the electrician twisted them together good. If so, you can take the wirenut off, lay the neutral from your new switch together with it, and crank it back down. Otherwise you'll probably struggle. If they aren't twisted together good, then Godspeed, LOL.