Square Enix never released official console-style cheats for the PC version. There are no "big head" modes or weapon selectors. Mods exist, but they require file replacements and can crash the game.

However, Microsoft Store or Xbox Game Pass for PC versions sometimes encrypt savedata differently.

You can search for values manually (Scan for "100" ammo, shoot, scan for "90"), but let’s be honest—nobody has time for that. Here are the specific memory edits that work for the Steam/GOG versions of the DE (as of the current patch).