The notch was introduced in September 2017 with the iPhone X, and since then it has been a polarizing topic about aesthetics and functionality. While some phones natively had a toggle to have a black bar on top, others were forced to stay with the cutout. The Nokia 6.1 Plus introduced the feature but was later removed by Google, since the HMD phone is on the Android One program. According to sources, you can put the notch back on, but only in Developers Mode, which leads to the assumption, the toggle might make it to all end users as a default option. To hide the notch on the...
Source: https://www.gsmarena.com/nokia_61_plus_hide_notch_option_is_coming_back-news-34075.php