Boot Tweaks

The following tweaks will stop, disable, mask from the Boot Start-Up process:

sudo systemctl disable ModemManager.service

sudo systemctl disable NetworkManager-wait-online.service

sudo systemctl disable pppd-dns.service

sudo systemctl stop avahi-daemon.service

sudo systemctl disable avahi-daemon.service

sudo systemctl mask avahi-daemon.service

sudo systemctl mask plymouth-quit-wait.service

sudo systemctl mask postfix.service

Purge Snapd

sudo apt purge snapd

Purge Gnome-Software Repository (SNAP)

sudo apt-get remove --purge gnome-software gnome-software-plugin-snap

Remove Flatpak remotes and show the remote source

flatpak remotes

Delete the sources as in this example:

flatpak remote-delete flathub

Purge Samba

sudo apt purge samba

Purge telnet

sudo apt purge telnet

Purge btrfs

sudo apt-get purge btrfs-progs && sudo update-initramfs -uk all

sudo update-grub

Apt-Daily Timer Service

sudo systemctl disable apt-daily.service

sudo systemctl disable apt-daily.timer

sudo systemctl disable apt-daily-upgrade.timer

sudo systemctl disable apt-daily-upgrade.service

sudo systemctl reboot