HDFC Moneyback+ RuPay CC UPI (3.3% cb), HDFC Regalia RuPay CC UPI offer higher cashback on Amazon shopping via UPI (+ Extra Amazon 5% cb).
HDFC Pixel RuPay CC - also offer 3% on amazon but not verified yet on UPI.
HDFC has not officially mentioned anywhere that higher rewards will be given on UPI, but when you make a transaction in this category, you still receive the default card spend rewards or accelerated reward (many people earlier verified with Moneyback+ UPI and Regalia UPI).
Similarly, the same happens with SBI Card on RuPay CC UPI spends except for fuel spends.