I recommend NOT using Manjaro, they have many issues, most described here: manjarno.snorlax.sh
for someone who wants an arch-based distro without tinkering too much there are other alternatives like endeavourOs, and I think Garuda too.
For someone who wants something that looks like windows, no need for Manjaro, just something with a desktop environment that looks like windows. I’d recommend Linux Mint, very simple to use (and for low end computers there is the XFCE edition), or distributions with KDE (fedora KDE, Kubuntu…) or maybe ZorinOS.
edit: also nobara Linux (based on fedora)may be good for games, they have a version that kinda feels like windows