If you dislike icons with frames (squircle or another shape), you can switch back to old-school design without frames (works on older devices – Android 6, 7). I don’t know whether it is possible on LG, HTC, Asus, Huawei, etc, but you can do this on many modern Samsung Galaxy phones and tablets. The screenshots taken on Samsung Galaxy S10, S7 and Tab A6 (2016) SM-T585. Note, that this setting affect only a part of icons, because some of them already have drawn frames and don’t change no matter which option you choose.
Read moreHow to Remove Frames From App Icons on Galaxy Devices