There are various generations of USB, with different capabilities and speeds, plus ports that look similar but do other things. There are a few key terms you should know when shopping for a USB hub:
USB 2.X/USB 3.X/USB 4: Every USB device is built to some version of the USB specification, mainly characterized by how much data they can transfer and how much power they can deliver (or at least, those are the main things you need to care about). While most of these devices are inter-operable as long as they use the same port, the entire chain will conform to the slowest part of the chain. Say you plug a USB 3.2 SSD into a USB 3.2 port on your computer, but use a USB 3.0 cable—data will only transfer at USB 3.0 speeds. Make sure every link in your chain is rated for the speed you need.
USB Power Delivery (or USB-PD): If your laptop, tablet, or other device doesn't have enough USB ports, you might be forced to choose between charging or plugging in accessories. USB-PD ports let you bridge this gap by plugging a charger into the hub to supply power to the laptop (and anything else connected to the hub that needs it. You'll see this referred to as “pass-through charging" though it's not an official specification. You'll want to make sure the wattage this USB-C port supports can handle what your laptop needs. A MacBook Pro typically needs 96 watts during intense workloads (though you can still charge them at lower wattage), so you'd need a 100-watt USB-C port on the hub.
USB-C and USB-A: These terms refer to the physical shape of the connectors and ports on devices. USB-C is common and looks like a small, elongated oval. It's also reversible, so you can't plug it in the wrong way. USB-A is the older, rectangular port you've seen for years. There are a lot more types of USB connectors, but these are the two you're most likely to see in most hubs.