Line spacing within an item in a list created with tasks package

Question

This is about using the tasks package. I was looking for an option (like in the commented line in the MWE below) to tweak the spacing between the lines inside an item (a task item). I couldn't find such an option in the documentation. Is there a way to decrease the space between the lines in task a) or task b) in the MWE?

Complementary question: is there a way to reduce the space between paragraphs (task c) as an example)?

\documentclass{article}
\usepackage{tasks}

\def\sample{This is some sample text we will use to create a somewhat longer text spanning more than a line.}
%\settasks{interline-space = 1em} % "interline-space" doesn't exist

\begin{document}
    \begin{tasks}
        \task line 1\\ line 2
        \task \sample\ \sample \\ \sample
        \task \sample\par\sample
    \end{tasks}
\end{document}

Answer 1

Is is something like that you want?

\documentclass{article}
\usepackage{tasks}
\usepackage{setspace}
\def\sample{This is some sample text we will use to create a somewhat longer text spanning more than a line.}
%\settasks{interline-space = 1em} % "interline-space" doesn't exist
\usepackage{etoolbox}
\AtBeginEnvironment{tasks}{\setstretch{.6}}

\begin{document}
    \begin{tasks}
        \task line 1\\ line 2
        \task \sample\ \sample \\ \sample
        \task \sample\par\sample
    \end{tasks}
This is some sample text we will use to create a somewhat longer text spanning more than a line. This is some sample text we will use to create a somewhat longer text spanning more than a line. This is some sample text we will use to create a somewhat longer text spanning more than a line.

\end{document}