Comment 0 for bug 1979997

[Impact]

 * A Desktop install with a Desktop Environment, a web-browser, web-browser based apps (vscode / mattermost / slack / spotify / keybase / etc), may use quite a bit of RAM

 * To elivate or delay OOM behaviour bump our swap & ram calculations

 * Ensure that total available memory (RAM+SWAP) is at least 8GB, without taking up more than 5% of disk space (when unencrypted).

[Test Plan]

 * Perform following installs:
   - unencrypted
   - encrypted LUKS
   - zfs
   - zfs encrypted

 * .... with following ram configurations
   - 2GB RAM
   - 5GB RAM
   - 8GB RAM
   - 10GB RAM

 * Which should result in
   - 6GB of SWAP
   - 3GB of SWAP
   - 2GB of SWAP
   - 2GB of SWAP

[Where problems could occur]

 * For a number of low RAM combinations this will result in higher swap sizes; which will be a higher % of disk space, meaning minimum amount of disk space required is also going up.

 * Higher RAM machines should not experience any changes

[Other Info]

 * This is primarily driven by average basic desktop usage, with amount of anonymous pages that can be swapped out, as they are unused.