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In this manuscript we establish local H\"older regularity estimates forbounded solutions of a certain class of doubly degenerate evolution PDEs. Bymaking use of intrinsic scaling techniques and geometric tangential methods, wederive sharp regularity estimates for such models, which depend only onuniversal and compatibility parameters of the problem. In such a scenario, ourresults are natural improvements for former ones in the context of nonlinearevolution PDEs with degenerate structure via a unified approach. As aconsequence for our findings and approach, we address a Liouville type resultfor entire solutions of a related homogeneous problem with frozen coefficientsand asymptotic estimates under a certain approximating regime, which may havetheir own mathematical interest. We also deliver explicit examples ofdegenerate PDEs where our results take place.

Sharp and improved regularity for a class of doubly degenerate parabolic Pdes