https://cannonkeys.com/collections/pcbs/products/instant65-pcb
^ This link will take you to a well known vendor's page that shows what a 5-pin switch hotswap PCB looks like.
https://drop.com/buy/drop-ctrl-barebones-mechanical-keyboard#imagecarousel
^ This link takes you to one of Drop's own boards, whose sockets only support 3-pin switches.
A switch socket for mechanical keyboards will generally always have one center column pole and two metal contact sockets/pins. If you look at a switch there will sometimes be two support legs/pins to the left and right of the center column pole.
A board can accommodate switches with either 3 or 5 pins/legs. All you need to do is find an image of the PCB and observe whether each switch socket has the two legs to the left and right of the center column.
Would it be possible to buy the standalone hot swap pcb? I recently bought this keyboard from another site claiming it being a hotswap but ended up not being hotswap.
You can find the original keyboard without group buying here
https://annepro2.com/shop/womier-k66-gateron-switch-rgb-mechanical-gaming-keyboard-with-crystalline-base-2/