howtodebuntu | Tweaks for Debian/Ubuntu Distro

Only for Advanced Users Go through this, because this can be a very helpful step. I am currently using brtfs & find it better. Also, don't remove the Recovery partition to be on the safe side, it helps out a lot. If you are on a newer Ubuntu-based system that uses Ubiquity installer it will automatically create a Swap File any time Ext4 is used for root. There are two ways of getting swap (You can choose which is better).
500 MB for Efi boot (Enough even for multi-boot)
Recovery (Very Useful, only Pop Os for Ubuntu you need to manually backup)
Swap partition (First, read What about Swap?)
(Before selecting read about Brtfs & Zfs) Remaining for Ext4/Brtfs/Zfs System
General Method - Creating a swap partition (Linux-swap), Now to do this you need to understand the importance of swap, if you have a low RAM device you need a huger swap like if you have 2GB ram you should get 4 to 6 GB of swap & optimise your swap ratio to a higher value. So, if you have a higher ram you need a lower swap. So, according to my numbers for a ram: swap should be as follows, 2 & lower:6, 4:6, 8:4, 16 & above:2. Also, you have to adjust the swappiness property (given below).
Swap File - It is a relatively new concept. In this, you create a swap file post-installation. You don't need to dedicate some fixed amount of memory to it as it does on Linux-swap that is why it is also space-efficient. And the best part is you can resize this or remove this whenever you want to.
Instruction set for the Swap file
Turn the Swap on
Add this line
Reboot
Install zram-config
To check
Reference on Rising of Btrfs
Reference on Btrfs on HDD
Reference on XFS on SSD
There are some basic things you need to do after installation.
When you run the apt upgrade, it only updates that which has a new release accessible to the platform, as defined in /etc/apt/sources.list or in /etc/apt/sources.list.d/. However, when you run apt dist-upgrade, it will intelligently install or remove packages as needed, to complete the upgrade. Dist-upgrade has an intelligent dispute determination method, so it will attempt to update the numerous necessary packages at the cost of those considered less valuable. But, this might be dangerous because it removes files that might eventually break the system.