Edit your htaccess file.
This alone will redirect your root o the public folder.
If you have a lot inside of your htaccess file. Be careful while adding stuff. Ensure you keep a backup before editing and test the addition of the code inside the htaccess file.

<IfModule mod_rewrite.c>
    RewriteEngine on
    RewriteCond %{REQUEST_URI} !^public
    RewriteRule ^(.*)$ public/$1 [L]
</IfModule>

sudo update-alternatives --config php

Step 1:
Open the below link and READ IT!
https://learn.microsoft.com/en-za/windows/wsl/install

1: Open PowerShell and Start the install process
wsl --install

2: Result shows you available distros: 
Ubuntu             Ubuntu
Debian             Debian GNU/Linux
kali-linux         Kali Linux Rolling
SLES-12            SUSE Linux Enterprise Server v12
SLES-15            SUSE Linux Enterprise Server v15
Ubuntu-18.04       Ubuntu 18.04 LTS
Ubuntu-20.04       Ubuntu 20.04 LTS
OracleLinux_8_5    Oracle Linux 8.5
OracleLinux_7_9    Oracle Linux 7.9

3: Install your selected distro. In my case I am choosing Ubuntu.
wsl --install Ubuntu

4: Wait for the install to finish.
Enter username and password in the ubuntu termainal and proceed.

5: Switch back to PowerShell and Check that your wsl version. 
wsl -l -v

6: Run the below command.
sudo apt update && sudo apt upgrade

7: Set default wsl version to version 2
wsl --set-default-version 2

8: If you manually installed WSL prior to the wsl --install command being available, you may also need to enable the virtual machine optional component used by WSL 2 and install the kernel package if you haven't already done so.
--
https://learn.microsoft.com/en-za/windows/wsl/install-manual#step-3---enable-virtual-machine-feature