Not to appeal to popularity, but if it's so bad, why do so many companies use it? Anecodtally - of the 120 icons on my phone's home screen: - 50 are blue-whit

Not to appeal to popularity, but if it's so bad, why do so many companies use it? Anecodtally - of the 120 icons on my phone's home screen: - 50 are blue-white logos (eg twitter) - 14 are red-white or red-black (eg youtube, netflix) - 12 green-white or green-black (eg, whatsapp, spotify) - the rest are a mixture of colours.