Not at all. Maybe three terminal commands tops to configure and add a user for yourself. Once the text config file is generated just import it on your client

Not at all. Maybe three terminal commands tops to configure and add a user for yourself. Once the text config file is generated just import it on your client and you are done. As long as you have forwarded the appropriate port through your firewall that's literally all it is to it. Of course if you have a firewall with it built in, then use that. However for pfSense and OpnSense wireguard runs in user mode and not the kernel, so depending on your traffic the pi may be faster since wireguard is compiled into the kernel with piVPN. Which can cause fun issues if there is a kernel update you aren't prepared for - was my only real problem with piVPN/Wireguard but it wasn't too hard to recover once I figured out what was going on :)