Help Removing Swelled Battery (glued?)

I'm in the process of removing the battery from my Razor laptop as it has swelled up quite significantly. In doing so, pretty much every guide and video I found states that after removing all the screws surrounding the battery, then the battery should pop out easily, however I'm finding that this is not the case for my model. I have removed the five screws in the locations circled in the below picture, yet the battery does not lift out and feels as if it is glued to the laptop frame.

Additionally, I am having trouble discerning where this battery connects to the motherboard, as there seems to be no connection visibly streaming from the battery which connects it to the rest of the laptop.

In scouring the internet, the only lead I have found comes from a comment on this thread, which mentions a comment that user had read elsewhere on YouTube which states: "There is a pull tab to the left edge of the battery. It looks like part of the frame but if you can lift it, just pull it straight out - it will come out as one piece."

When I examine the laptop battery inside the chassis, I do see a tab which I am able to lift up slightly on the left side of the battery (pictured below). However, I do feel a little bit nervous about pulling on something next to this giant pillow based off a third-hand account. Does anyone with experience replacing batteries know that this is the correct solution?