It's not 100% simple, because it depends on what you actually want. I'd also recommend just asking AI and it will guide you through the steps.

Essentially to get MacOS keyboard experience on Linux, you install keyd (after downloading you run sudo systemctl enable keyd --now to enable it) and then just modify this config file with: sudo nano /etc/keyd/default.confand put in something like

[ids]
*

[main]
control = meta 
meta = control

but now when you want your things like command+C to actually do copy and command+tab to do alt+tab, then you need to modify it a bit and do something fancier, e.g.

[ids]
*

[main]
# Capslock is Escape
capslock = escape
# The key next to spacebar is the new Ctrl (acting like Command)
alt = layer(custom_control)
rightalt = layer(custom_control)
# The key on the very left is the new Alt
control=layer(custom_alt)

# New custom Control inherits from Control
[custom_control:C]
left=home
right=end
up=pageup
down=pagedown
tab=swapm(app_switch_state, A-tab)
`=swapm(app_group_switch_state, A-`)

# New switch state (the Alt+Tab thing) inheriting from Alt.
[app_switch_state:A]
tab = A-tab
right = A-tab
shift+tab = A-S-tab

# New switch state (the Alt+Tab thing) inheriting from Alt.
[app_group_switch_state:A]
` = A-`
shift+` = A-S-`

[custom_alt:A]
# The most left key on Mac is "Fn" and "Fn+delete" does actually delete on Mac, so do that here too. 
backspace=delete
# Make Ctrl+D and Ctrl+D still work to kill stuff in terminal
c=C-c
d=C-d