Because of the ubiquity, nay, monopoly of systemd I always assumed it was miles ahead of other init systems. Nope. I've been using a non-systemd environment for a while and must say I'm surprised by how little breaks, i.e., next to nothing. Moreover, boot and shutdown times are faster. I'd suggest trying it out.
OC writeup by @arsCynic@piefed.social
Is she more used to Mac? Does she have an iPhone?
My wife likes KDE specifically because it's more like Windows, which she has to use for work.