I've used 4k TVs and currently a UWHD (Dell AW3420DW)
If you have a good enough monitor for gaming already and are more interested in programming aspect, I'd def recommend a 37-42" 4K tv. Way more for your buck. If you can find a TV with 120Hz refresh, that would be sufficient for gaming too.
One thing to note is that ultrawides are not great for full screen sharing as everyone else pretty much uses a different aspect ratio.