Certainly looks like it, though it’s a pity they aren’t labeled. If the router doesn’t have 4 open ports, you’ll need a decent switch. Most can mount to a wall, so it should still be a nice clean install.

I happen to like meshes, but only if the access points have wired backhauls. And even then, for a stationary setup like a desktop, you really don’t get any advantage of using a mesh; the issue that meshes were designed to solve was the seamless transfer of devices from one access point to the next. Since the desktop is not likely to be moving throughout the house, there’s no clear benefit, here, for a substantially greater cost.

Or just buy a WiFi PCI card and actually install it in the PC. I guarantee you’ll get better performance and have less trouble than using an extender/bridge.