No, the post-study work visa is open to graduates from all academic disciplines. In 2019, the UK government made it easier for students finishing advanced degrees, like Master's or PhDs, in STEM fields (Technology, Mathematics, Engineering, and Science) to obtain visas. This extension now encompasses graduates from any discipline from accredited higher education institutions as of 2020. However, it's essential to complete a full degree programme to qualify. The revised visa regulations do not apply to individuals undertaking short courses, English language training programmes, A-Levels, or the Baccalaureate.