Please don't use it. Fortnite should best go with it and do some video editing.
It's best to link the shop to me.
Hardware deal on Youtube search. They have something for all price ranges.
If you pack a 650 GTX with 8 cores in it should go to the lowest settings.
This is the best PC for around 500 euro, currently 530 euro:
https://hardwarerat.de/...0-sata-ssd
You will not find a better offer without sacrificing quality and future security or upgrade potential.
But don't expect a performance miracle.
It will be enough for Fortnite with competitive settings and video editing should still be quite solid in 720p / 1080p.
However, it would be very advisable either to spend a little more now or to upgrade your PC in the near future (16 GB RAM, more powerful graphics card) if you really want to use it longer and more effectively.
E.g. For now:
Moin https://www.hardwaredealz.com/bester-gaming-pc-fuer-unter-500-euro-gamer-pc-bis-500-euro/