I can cite dozens of examples.
In the jobber Hulk vs Thanos fight, punches by Thanos did nothing to move the Hulk. Thor and Hulkbuster have sent Hulk further with their strikes.
In the Iron man vs Thanos fight, his punches didn't send him flying like it should. Hulk's punches against Thor sent him much further than Thanos vs iron man.
Ronan sent drax further than Thanos with his strikes.
When Thanos punched captain america, cap was ko'ed but didn't go flying with the punch. Even civil war Iron man and cross bones sent him further than Thanos did.
Even shocker has far better striking power than Thanos tbh.