I have a PC with my dad and my mom. The PC in my mum is better and therefore has higher graphics settings. The PC with my dad but has not enough power for the settings and therefore I do not want to change the settings every time I'm with my dad I ask if you can set different settings for the same acc at 2 PCs
As long as you do not want to play 2 PCs at the same time, it works.
That depends on whether Fortnite saves the settings in the cloud or locally. If it stores them locally, then yes, if the settings are in the cloud, the settings sync on all the devices you're playing with the account.
Can you control a person with 2 brains - one from one who speaks only English, the other from one who can only speak Finnish? And then there's also someone who would like to have 5 euro per brain?