UbuntuDesktop 20.04 ARM (on a raspberry pi) installation problems

[RocketMan7m]

I have spent over 2 days trying to get Zabbix installed -
system :
Raspberry Pi4 8gb ram, 128gb SDcard
Ubuntu Desktop 20.04 Desktop for Pi

following the installation steps -
# wget https://repo.zabbix.com/zabbix/5.4/u...u20.04_all.deb
# dpkg -i zabbix-release_5.4-1+ubuntu20.04_all.deb
# apt update
upon the sudo apt update, I get errors and can not continue -
sudo apt update
Hit:1 http://ports.ubuntu.com/ubuntu-ports hirsute InRelease
Hit:2 http://ports.ubuntu.com/ubuntu-ports hirsute-updates InRelease
Hit:3 http://ports.ubuntu.com/ubuntu-ports hirsute-backports InRelease
Hit:4 http://archive.canonical.com/ubuntu hirsute InRelease
Get:5 https://repo.zabbix.com/zabbix/5.4/ubuntu-arm64 focal InRelease [4,930 B]
Hit:6 http://ports.ubuntu.com/ubuntu-ports hirsute-security InRelease
Get:7 https://repo.zabbix.com/zabbix/5.4/ubuntu-arm64 focal/main Sources [1,223 B]
Get:8 https://repo.zabbix.com/zabbix/5.4/ubuntu-arm64 focal/main arm64 Packages [3,551 B]
Fetched 9,704 B in 3s (2,936 B/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up to date.
N: Skipping acquire of configured file 'main/binary-armhf/Packages' as repository 'https://repo.zabbix.com/zabbix/5.4/ubuntu-arm64 focal InRelease' doesn't support architecture 'armhf'


I have searched and searched and can not find anything that will get passed this error
I have even tried installing for different Ubuntu platforms, no luck. I am at a loss

I am NOT an ubuntu SMA by any means, I am learning

all help is greatly appreciated

Thanks!