The link you posted has nothing to do with this SoC?
You’re not going to get 2.5G over wireguard on the 3588, but you are definitely going to get over 1G.
Wireguard scales well with cores, but due to the way big.LITTLE is implemented on the 3588, it could lose performance if it tries to split the workload between core complexes.
As far as ARM SBCs go, I’d say B tier. Not as good as a RaspberryPi or RockPi but armbian installed great. Had a pain debugging the rockchip video decoder in a container, and still have issues with USB hard drives.
If you’re coming from x86_64, be prepared for some unique challenges.
On an OrangePi with a powered USB hub using a bunch of SSDs.
All except the Minecraft server running on Podman.
I use PiHole+Unbound in a podman quadlet, and give it its own macvlan. Works great for me.