Comments on the paper "Solutions of Multitime Reaction-Diffusion PDE"

The Comments are devoted to the paper ``Solutions of Multitime Reaction-Diffusion PDE’’ (Mathematics, vol. 10 (2022), 3623), in which main results are misleading and can be derived in a simple way from those obtained earlier. Moreover, it is shown that the exact solution derived therein are simple generalizations of the known solutions and are easily obtainable by the method of differential constrains. The Comments were submitted to the journal Mathematics.