In the AAA games industry, a portfolio speaks much louder than a degree. Junior software engineers with five simple, well-coded games (such as Asteroids, Lunar Lander, etc) on GitHub stand head and shoulders above people fresh out of university without a portfolio in the recruitment process. Senior software engineers with experience developing large AAA titles are in much higher demand than those with a PhD in game systems, such as AI or networking, which is practically non-competitive. So I'd say the degree doesn't matter, at least in this corner of software engineering.
I entered the gaming industry a long time ago as a software engineer without a computer science degree. Later, I thought I'd get one online, just as you are considering. It was reasonably cheap compared to my income, and I thought I had the extra hours for an evening online course. But I found it to be very demoralizing. I'd be micro-optimizing containers in AAA game engines, shaving microseconds off operations by reducing CPU cache misses on target consoles in the morning, and earning a 60% grade on my JavaScript game in the afternoon, because I didn't follow the method shown in class. I also did poorly in CS math, especially with formal proofs, which were a lot of fun for math enthusiasts but grating for me, being an expert in game math and graphics math at the time. When my fourth semester rolled around, I found only one or two modules to be somewhat useful, while others, such as HTML web design, had no bearing on my profession. I dropped out about halfway through my degree, leaving me with a lot of money spent but nothing to show for it. I could have forced myself through it, but it would have been on pure discipline (which is easier for some than it is for me!)
My advice is: don't get a CS degree because it's doable. Get it if you need it for something, like if you wish to enter a specific industry that requires a meaningful academic experience, such as research. Your degree will then serve a purpose. Otherwise, you might feel like you're not getting much out of it, and it won't be easy to justify carrying through. Especially if you're already performing at a level significantly higher than what a degree puts you on. Or maybe the purpose a degree could serve for you is fun - perhaps the academics would be rewarding for you in a way that doesn't have to flow into your work, or you get networking opportunities that a good uni/college affords. But my view is: it's a significant commitment, so there has to be a meaningful, clear reason to do it. Otherwise, it will be all cost and no return.