Here is a possible method to install WireGuard Client on Ubuntu Server 24.04

    sudo apt update && sudo apt upgrade -y
    sudo apt install -y wireguard wireguard-tools
    
 Generate a private public key pair for the client.   
    wg genkey | tee client_private.key | wg pubkey > client_public.key
    
For security, it's recommended to store the keys outside of the current directory. For example, you can use a directory like /etc/wireguard/keys/. 
You will need the client's public key and the server's public key to create the configuration file.

Create a configuration file, for example, /etc/wireguard/wg0.conf

    sudo nano /etc/wireguard/wg0.conf
    
    [Interface]
    PrivateKey = <Your-client-private-key>
    Address = <Your-client-private-ip>/<subnet-mask>
    DNS = <server-dns-server>
    [Peer]
    PublicKey = <Your-server-public-key>
    Endpoint = <Your-server-public-ip>:<Your-server-port>
    AllowedIPs = <server-ip>/<subnet-mask>, <server-private-ip>/<subnet-mask>
    PersistentKeepalive = 25

Start the Wireguard interface

    sudo wg-quick up wg0
    
Set it to start on Boot

    sudo systemctl enable wg-quick@wg0
    
Check the status of the interface

    sudo wg show
    
    
https://www.youtube.com/watch?v=jb3uMuYYLhQ&t=213s