Really depends on what you consider a “switch” to be. Most of Mikrotik’s CRS series supports full fat RouterOS, which includes wireguard support. Though the CPU on the CRS line is much cheaper than the proper routers (CCR series), so if you’re trying to do much more than a basic firewall and NAT on a residential connection (can probably handle 1Gbps fine on most of them) performance will not be great (even my CCR2004 can only handle ~3Gbps of IPSEC traffic).
