Dell Optiplex 9020M can't connect to internet with Ubuntu server 20.04.3 LTS

I am intending to run a server on an old dell optiplex 9020M. But i am having trouble connecting to the internet. It seems like it is not able to detect the internet when going through setup (Ubuntu Server 20.04.3).

I have tried following several guides but to no avail. I have tried installing the drivers on the following site https://www.intel.com/content/www/us/en/support/articles/000005480/ethernet-products.html but when installing i need packages which can only be obtained through apt-get, which needs internet to work. When i install packages through another computer and transfer via usb i get stuck in a dependency loop where every package needs another package to work.

Do any of you have any idea of what the problem could be? Any help is greatly appreciated. Best regards!

EDIT1:

Based on the comments I have executed the commands requested and here they are:

Image of the commands and their output

The commands sudo netplan generate and sudo netplan apply does not produce any output in the termial.

I have tried to edit the netplan yaml file according to the first answer. This is still my output:

I have tried the following commands based on answers: sudo dmesg | grep eno1 and: sudo netplan -debug apply

Sorry for any inconvenience, this is my first time posting a question.

First of all, find out the exact name of your netplan file:

ls /etc/netplan

Next, we will amend the file slightly:

sudo nano /etc/netplan/<what_you_found>.yaml

Amend the file to read:

network:
  version: 2
  renderer: networkd
  ethernets:
    eno1:
      dhcp4: true
  

Netplan is very specific about indentation, spacing, etc., so proofread carefully twice. Save (Ctrl+o followed by Enter) and exit the text editor (Ctrl+x).

Follow with:

sudo netplan generate
sudo netplan apply

Assuming there are no errors or warnings, check to see if you received an IP address:

ip addr show