I generally agree, I have a cheap AWS Lightsail VPS (mainly for email hosting since my ISP blocks port 25 because I'm a "consumer" and they want to protect the world for consumer spammers) but also for flexibility. I like that the Internet is not at my doorstep (no open ports at home). So, cheap VPS, Wireguard and my home machines to serve whatever I want. I don't pay extra if I use a ton of CPU or disk IO, for example.

Here is my Wireguard server (cheap VPS) and client (my home servers) config:

# # Client (the actual self-host local server) #

[Interface] ## This Desktop/client's private key ## PrivateKey = redacted

## Client ip address ## Address = 10.10.123.2/24

[Peer] ## Ubuntu 20.04 server public key ## PublicKey = redacted

## set ACL ## AllowedIPs = 0.0.0.0/0

## Your Ubuntu 20.04 LTS server's public IPv4/IPv6 address and port ## Endpoint = redacted:12345

## Key connection alive ## PersistentKeepalive = 15

# # Server (in the Wireguard context, exposed to the Internet) #

[Interface] ## My VPN server private IP address ## Address = 10.10.123.1/24

## My VPN server port ## ListenPort = 12345

## VPN server's private key i.e. /etc/wireguard/privatekey ## PrivateKey = redacted

PostUp = iptables -i eth0 -t nat -A PREROUTING -p tcp --dport 80 -j DNAT --to-destination 10.10.123.2 # Add lines for more ports if desired

PostDown = iptables -i eth0 -t nat -D PREROUTING -p tcp --dport 80 -j DNAT --to-destination 10.10.123.2 # Add lines for more ports if desired

[Peer] ## Desktop/client VPN public key ## PublicKey = redacted

## client VPN IP address (note the /32 subnet) ## AllowedIPs = 10.10.123.2/32