A LaTeX package for commenting. It allows line breaks and environments inside comments.

commenting.sty

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{commenting}[2022/10/29 by Jae Hee Lee (http://jaeheelee.de)]
\RequirePackage{hyperref}
\RequirePackage{ifdraft}
\RequirePackage{graphicx}
\RequirePackage{xcolor}
\RequirePackage{xspace}
\RequirePackage{environ}
\RequirePackage{soul}
\RequirePackage{twemojis}
\ifdraft{%
  \setkeys{Gin}{draft=false}                                            %
  \hypersetup{final}                                                    %
  \interfootnotelinepenalty=\@M
  \RequirePackage[ruled,perpage]{manyfoot}%
  \DeclareNewFootnote{A}[fnsymbol] \renewcommand{\thefootnoteA}{\texttwemoji{left speech bubble}\Alph{footnoteA}} %
  % Colored text
  \newcommand{\added}[2]{{\leavevmode\color{#1}#2\textsuperscript{#1}}} %
  % Colreed environment
  \NewEnviron{colored}[1]{\leavevmode\color{#1}\BODY\textsuperscript{#1}}%
  \newcommand{\deleted}[2]{{\leavevmode\color{#1}\st{#2}\textsuperscript{#1}}} \newcommand{\inlinenote}[2]{{\noindent\footnotesize\leavevmode\color{#1}\xspace\texttwemoji{left speech bubble} #2\textsuperscript{#1}}}%
  \newcommand{\note}[2]{\protect\footnoteA{\color{#1}#2\textsuperscript{#1}}} %
}{%
  \newcommand{\added}[2]{#2}%
  \newenvironment{colored}[1]{}{}%
  \newcommand{\deleted}[2]{}%
  \newcommand{\inlinenote}[2]{}%
  \newcommand{\note}[2]{}%
}

% Custom color definitions
% Colors are from https://latexcolor.com
\definecolor{jazzberryjam}{rgb}{0.65, 0.04, 0.37} %
\colorlet{JL}{jazzberryjam}

% For adding texts in color. The color disappears when the draft mode is turned off.
\newcommand{\jae}[1]{\added{JL}{#1}}
\NewEnviron{jlenv}{\let\body\BODY\begin{colored}{JL}\body\end{colored}}

% For adding footnote comments in color. Comments disappear when the draft mode is turned off.
\newcommand{\jlnote}[1]{\note{JL}{#1}}

% For adding inline comments in color. Comments disappear when the draft mode is turned off.
\newcommand{\jlinline}[1]{\inlinenote{JL}{#1}}

% For deleting text. Text disappears when the draft mode is turned off.
\newcommand{\jldel}[1]{\deleted{JL}{#1}}