App icons disappearing, can’t access photos

Hello, I was wondering if anyone on here has ever had this issue and knew how to fix it? My iPhone is an iPhone Xr and has the 14.6 software version. I tried rebooting, but every time I do that, different app’s icons disappear, it’s pretty much randomized. Also I can’t access my photos for some reason and Safari is very slow all of the sudden. Idk what to do and I’m hoping someone on here has an answer, thank you.

App icons disappearing, can’t access photos
 
 
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