It’s mostly that Librewolf is a bit like incognito mode by default and it may be confusing for new users.
If you really want to go power mode you can create multiple profiles with different cookie policies. Great to organise yourself and keep cookies where they belong
Don’t put a fast charger for overnight charge. It degrades the battery. I got my charger hooked up to my server’s usb port and it’s able to charge a 10000mha battery overnight at nearly 100% from low percents.