How to disable Beamer's theming on last page?

Question

I want to disable beamer's theming and \usetheme effect on the last page. Expected output is for the official form view similarly as in Fig. 1. I am gathering input from all other pages, and lastly, showing the result on the last page as A4 without any presentation formats from \usetheme.

Expected output: pages 1-2 presentation presentation theme, but last page A4 form without effect of \usetheme

Fig. 1 Example form

Code motivated by comments and their linked thread answers

\documentclass{beamer}    
\usepackage[english]{babel}    
\usetheme{Berkeley} 
\logo{
%% llx lly urx ury
\includegraphics[trim=8cm 2cm 11cm 2cm,clip, height=\headheight, width=\headheight]{example-image}
}

%\usepackage{hyperref} % Not needed!
\begin{document}

% https://tex.stackexchange.com/a/384801/13173

% Take data input from Page 1
\begin{frame}
\frametitle{muuttujat}
\section{1. taidot} 

\begin{Form}
\begin{enumerate}
\item \ChoiceMenu[name=football,radio,default=-0]{Do you play football?}{Much (2)=2,Little (1)=1,Not at all (0)=0}
\item \ChoiceMenu[name=ice-hockey,radio,default=-0]{Do you play ice-hockey?}{Much (2)=2,Little (1)=1,Not at all (0)=0}
\end{enumerate}
\end{Form}
\end{frame}

% Take data input from Page 2
\begin{frame}
\section{2. lorem}

\begin{Form}
\begin{enumerate}
\item \ChoiceMenu[name=soccer,radio,default=-0]{Do you play football?}{Much (2)=2,Little (1)=1,Not at all (0)=0}
\item \ChoiceMenu[name=earth-hockey,radio,default=-0]{Do you play ice-hockey?}{Much (2)=2,Little (1)=1,Not at all (0)=0}
\end{enumerate}
\end{Form}
\end{frame}

% https://tex.stackexchange.com/a/385265/13173
\pdfpagewidth 21cm
\pdfpageheight 29.7cm

% Show summary here from Page 1 and 2
\begin{frame}[plain]
\vskip1cm
\begin{minipage}{19cm}
    \frametitle{START}
    \section{Summary}
    \begin{Form}
    \TextField[readonly=true,value=0,calculate={event.value=this.getField("football").value+this.getField("ice-hockey").value+this.getField("soccer").value+this.getField("earth-hockey").value;}]{Summary score:}
\end{Form}
\end{minipage}
\end{frame}

\makeatletter
\pdfpagewidth \beamer@paperwidth
\pdfpageheight \beamer@paperheight
\makeatother

\end{document}

Output: as expected in paper style but the style control tools are still there in Fig. 4

Fig. 4 Control tools wrongly visible on the last page

OS: Debian 9
TeXLive: 2017
PDF viewer: Adobe acroread installed like this

Answer 1

Given the iteration in the comments, I'll try to answer, even though I'm still not clear on what the OP wants. If I understood correctly, you could try the following:

\documentclass{beamer}    
\usepackage[english]{babel}    
\usetheme{Berkeley} 

\begin{document}

% Take data input from Page 1
\section{1. taidot} 
\begin{frame}
\frametitle{muuttujat}   
\begin{Form}
\begin{enumerate}
\item \ChoiceMenu[name=football,radio,default=-0]{Do you play football?}{Much (2)=2,Little (1)=1,Not at all (0)=0}
\item \ChoiceMenu[name=ice-hockey,radio,default=-0]{Do you play ice-hockey?}{Much (2)=2,Little (1)=1,Not at all (0)=0}
\end{enumerate}
\end{Form}
\end{frame}

% Take data input from Page 2
\section{2. lorem}
\begin{frame}
\begin{Form}
\begin{enumerate}
\item \ChoiceMenu[name=soccer,radio,default=-0]{Do you play football?}{Much (2)=2,Little (1)=1,Not at all (0)=0}
\item \ChoiceMenu[name=earth-hockey,radio,default=-0]{Do you play ice-hockey?}{Much (2)=2,Little (1)=1,Not at all (0)=0}
\end{enumerate}
\end{Form}
\end{frame}

\begingroup
% https://tex.stackexchange.com/a/385265/13173
\pdfpagewidth 21cm
\pdfpageheight 29.7cm

% Show summary here from Page 1 and 2
\setbeamertemplate{navigation symbols}{}%remove navigation symbols
\begin{frame}[plain]
\vskip1cm
\begin{minipage}{19cm}
    \frametitle{START}
    \section{Summary}
    \begin{Form}
    \TextField[readonly=true,value=0,calculate={event.value=this.getField("football").value+this.getField("ice-hockey").value+this.getField("soccer").value+this.getField("earth-hockey").value;}]{Summary score:}
\end{Form}
\end{minipage}
\end{frame}

% these below eventually are not needed, if this is the last slide of your document

\makeatletter
\pdfpagewidth \beamer@paperwidth
\pdfpageheight \beamer@paperheight
\makeatother
\endgroup    

\end{document}