The H-1B Visa is an immigration program that brings highly skilled workers into America when a shortage of those skills exists in the domestic labor market. The program came to life as part of the Immigration Act of 1990, under the George H.W. Bush administration. Although the program was temporarily suspended for 10 months under the Trump administration, this stoppage has since been lifted by Biden.
Source: https://www.visualcapitalist.com/the-data-behind-americas-h-1b-visa-program/