Student loan forgiveness: blocked by the Supreme Court along partisan lines: Biden v. Nebraska (https://en.wikipedia.org/wiki/Biden_v._Nebraska)
Union support is so absurdly widespread, I don’t even know what to reference. E.g., on his 3rd day in office, Biden signed an executive order to empower government employees to join unions. This resulted in about a 20% increase in unionized federal employees. He was also the first sitting president to ever attend a picket line on the side of the workers. His Department of Labor and NLRB appointees were longtime unionized labor advocates, who through regulations lowered barriers to joining unions and hammered anti-union behaviors by companies like Starbucks.