P30 Pro WiFi issues

Maybe someone can help here - my girlfriend has a P30 Pro which constantly disconnects from our home WiFi for no apparent reason, requiring someone (usually me) to manually reconnect it, and unless I'm literally hovering the phone above the router, it doesn't do anything. Even worse, it sometimes, more often than not, completely forgets the home WiFi, forcing me to manually enter the network name and password every time. I've Googled this issue, and I can find *nothing* that seems to fix it. Huawei's 'method', if you can call it th https://nox.tips/at, always blames the router, stating things like "reset your connection", amongst other ridiculous router-blaming ideas.

I'm not an Android person, so I can only do so much, but the fact that my iPhone doesn't have any issues with our router suggests it'shttps://xender.vip/ definitely the phone. I've also YouTubed this issue, and I've noticed a lot of people complaining about Huawei phones having WiFi issues in general. It's got to the point now where I'm sick of having to reconnect the phone every 10-15 mins, even though she's sat 10 feet away using the same WiFi I'm using. Seriously, I'm gonna throw the phone out of the window at some point. Can anyone assist? It would be much appreciated.