As reported last week, sales of the Raspberry Pi are current going gangbusters due to COVID-19. One cool and simple project that you can set up with your new found time and your new Raspberry Pi 4, Pi 3 or other compatible SBC is join the fight against COVID-19 by joining the Fold for Covid project using balenaEtcher, a balena OS image and a microSD card.
https://www.notebookcheck.net/Use-your-Raspberry-Pi-to-join-the-fight-against-COVID-19.463108.0.html