You mean among schools you’re considering? Because there certainly are schools that require them.
“In addition, we require two SAT Subject Tests: one in math (level 1 or 2), and one in science (physics, chemistry, or biology e/m)“
“ The following standardized test are required for a complete freshman application. We do not accept any substitutes for these tests.
SAT or ACT
SAT Subject Test in Mathematics Level 2
1 SAT science subject test: biology (ecological), biology (molecular), chemistry, or physics”
And, as noted, at many schools, “recommended” means required unless you have a financial hardship.