How to use a typical Linux / Windows Keybinding on MacOS (tested with 10.15.6 Catalina)

DefaultKeyBinding.dict

/*
PUT THIS FILE IN ~/Library/KeyBindings/DefaultKeyBinding.dict

HOW TO CREATE THIS FILE
sudo mkdir ~/Library/KeyBindings/
sudo touch ~/Library/KeyBindings/DefaultKeyBinding.dict
sudo cmod 644 ~/Library/KeyBindings/DefaultKeyBinding.dict
sudo chown itSme ~/Library/KeyBindings/DefaultKeyBinding.dict # assumes your username="itSme"
AND THAN EDIT FILE
open -e ~/Library/KeyBindings/DefaultKeyBinding.dict

This file remaps the key bindings of a single user on Mac OS X 10.5 to more closely
match default behaviour on Windows systems.  This particular mapping assumes
that you have also switched the Control and Command keys already.

This key mapping is more appropriate after switching Ctrl for Command in this menu:
Apple->System Preferences->Keyboard & Mouse->Keyboard->Modifier Keys...->
Change Control Key to Command
Change Command key to Control
This applies to OS X 10.5 and possibly other versions.

Here is a rough cheatsheet for syntax.
Key Modifiers
^ : Ctrl
$ : Shift
~ : Option (Alt)
@ : Command (Apple)
# : Numeric Keypad

Non-Printable Key Codes

Up Arrow:     \UF700        Backspace:    \U0008        F1:           \UF704
Down Arrow:   \UF701        Tab:          \U0009        F2:           \UF705
Left Arrow:   \UF702        Escape:       \U001B        F3:           \UF706
Right Arrow:  \UF703        Enter:        \U000A        ...
Insert:       \UF727        Page Up:      \UF72C
Delete:       \UF728        Page Down:    \UF72D
Home:         \UF729        Print Screen: \UF72E
End:          \UF72B        Scroll Lock:  \UF72F
Break:        \UF732        Pause:        \UF730
SysReq:       \UF731        Menu:         \UF735
Help:         \UF746

NOTE: typically the Windows 'Insert' key is mapped to what Macs call 'Help'.
Regular Mac keyboards don't even have the Insert key, but provide 'Fn' instead,
which is completely different.
*/

/* Swap Cmd with Option */
{
"~\UF702"   = "moveToBeginningOfLine:";                       /* Option + LeftArrow */
"~\UF703"   = "moveToEndOfLine:";                             /* Option + RightArrow */
"~$\UF703"  = "moveToEndOfLineAndModifySelection:";           /* Option + Shift + LeftArrow */
"~$\UF702"  = "moveToBeginningOfLineAndModifySelection:";     /* Option + Shift + RightArrow */

"@\UF702"  = "moveWordBackward:";                             /* Cmd + LeftArrow */
"@\UF703"  = "moveWordForward:";                              /* Cmd + RightArrow */
"@$\UF702" = "moveWordBackwardAndModifySelection:";           /* Shift + Cmd + LeftArrow */
"@$\UF703" = "moveWordForwardAndModifySelection:";            /* Shift + Cmd + RightArrow */
}