Its a fact that the EPA added ~6000 employees during the Biden administration and also instituted DEI policies to follow President Biden’s Executive Order 14035 (2021). This included employee-led special emphasis groups, LGBTQ+ events, and justice-oriented programs. All this is out of focus from the EPA's goal to safeguard the natural environment.
It should be NO surprise that there is massive push-back after a republican administration came to power. Donald Trump explicitly campaigned to cut the EPA’s size and funding and to eliminate DEI and environmental justice programs in the federal government.