Remove Black box around Icons?

[shieldmaiden13]

My mom's Samsung s23 Ultra added these weird black boxes. Does anyone know how to get rid of these? Phone is up to date. I have tried the themes setting and it is set to default. We also already tried reset all settings and nothing change. 

[LongHiker · Accepted solution]

@shieldmaiden13 It looks like she has installed a 3rd party launcher. 

Go to phone settings -> Apps -> Choose Default apps -> Home app. The default value should be "One UI Home". 

[shieldmaiden13]

That fixed it. Thank you so much.