Connect laptop to home network using wifi-hotspot on iPhone
Solution 1:
I've figured it out. I needed to set up my laptop as an additional Wireguard client. My original assumption was that my cell would act as an extension of my home network, which is not the case. I've set up Wireguard on my laptop, connect to my cell's hotspot, then start a connection to WG on my laptop. Works as expected. Leaving this here in case someone else comes across the same question.