This script will compare current package list on a system with the "ideal" one of a fresh install of the same system.

microos-status.sh

#!/bin/bash

if [ "$EUID" -ne 0 ]; then
	sudo "$0" "$@"
	exit
fi

GREEN='\033[1m\033[32m'
YELLOW='\033[1m\033[33m'
CLEAR='\033[0m'

print_yellow() {
	printf "${YELLOW}"
	printf "%s\n" "$@"
	printf "${CLEAR}"
}

print_green() {
	printf "${GREEN}"
	printf "%s\n" "$@"
	printf "${CLEAR}"
}

print_green "Checking updates..."
zypper ref
#
BASE_PATTERNS="$(rpm -qa --qf "%{NAME}\n" | grep ^patterns | sort -u)"

# Add basic packages added by Yast during installation
BASE_PATTERNS="$BASE_PATTERNS
	MicroOS-release
	NetworkManager
	btrfsprogs
	cryptsetup
	e2fsprogs
	glibc
	grub2
	grub2-branding-openSUSE
	grub2-i386-pc
	grub2-i386-pc-extras
	grub2-snapper-plugin
	grub2-x86_64-efi
	grub2-x86_64-efi-extras
	irqbalance
	kernel-default
	kernel-firmware-all
	kexec-tools
	numactl
	openssh
	os-prober
	pam
	rpm
	snapper
	transactional-update
"

if grep -qi amd /proc/cpuinfo; then
	BASE_PATTERNS="$BASE_PATTERNS
	ucode-amd"
elif grep -qi intel /proc/cpuinfo; then
	BASE_PATTERNS="$BASE_PATTERNS
	ucode-intel"
fi

print_green "Reconstructing system state..."

BASE_PACKAGES="$(zypper \
	--installroot /tmp/ \
	install -y --dry-run --force-resolution --replacefiles --force $BASE_PATTERNS |
	grep -A1 'packages are going to be installed' | tail -n+2 | tr ' ' '\n' | sort -u)"

print_green "Retrieving installed packages..."

INSTALLED_PACKAGES="$(rpm -qa --qf "%{NAME}\n" | grep -Ev '^(gpg-pubkey)' | sort -u)"

EXTRA=$(diff <(echo "$BASE_PACKAGES" | sort -u) <(echo "$INSTALLED_PACKAGES") |
	grep '>' | cut -d'>' -f2- | sed -r '/^\s*$/d')
MISSING=$(diff <(echo "$BASE_PACKAGES" | sort -u) <(echo "$INSTALLED_PACKAGES") |
	grep '<' | cut -d'<' -f2- | sed -r '/^\s*$/d')

print_green "Computing diff..."

print_yellow "######## EXTRA"
echo "$EXTRA"
print_yellow "######## MISSING"
echo "$MISSING"