Polynomial power over finite fields with certain conditions

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Let $f$ be a polynomial of degree 5 over $\mathbb F_p$ which has no multiple roots in $\overline{\mathbb F_p}$. ($p$ is prime and large enough. We can assume $p>100$).

Is it possible to find a such $f$ such that $$f^{(p^2-1)/2}(x)=s_0(x)+x^{p^2}s_1(x)+x^{2p^2}s_2(x)$$ where $s_0,s_1,s_2$ of degree $<p(p-1)$.

Note 1: For all such polynomials, there is always such $s_2$ because of the degrees of polynomials. So the problem is actually depending to $s_0$ and $s_1$.

Note 2: Computational, I couldn't find any such $f$.


The other version of this question (not same but this one gives that the other one exists)

Is it possible to find a such $f$ such that $$f^{(p-1)/2}(x)=s_0(x)+x^{p}s_1(x)+x^{2p}s_2(x)$$ where $s_0,s_1,s_2$ of degree $<p-3$.

Similar notes here too.