You should probably go do a battery health check. If your range is that bad, your battery degradation should be within warranty replacement range.

At home I have a steelcase leap, it's around $700 new. But I can literally sit in it all day with no issues. To me it's worth it to spend the extra since it's basically where I spend most of my non-working time.

But for a cheaper option, we have something similar to these at my work (software developer). If I didn't already have a really good chair at home, I would probably get one of these. I can sit in it probably just as much as my one at home, and have no issues. The mesh back actually lets your back breathe, and doesn't retain heat so no back sweat. It's also relatively durable for the mesh and seat area. But mine does have issues after about 2 years of sometimes the gas piston leaks and when you sit down in it, it goes to the lowest setting. I'm sure one day it will finally just always be at the low setting, but luckily, it's not to low for me to work with.