Use of APA7 in Latex with apacite

Question

i´m using Latex with bibtex and apacite. Until some weeks ago, my university set apa6 as the current citation style, which i could perfectly put to practice, however now we have to use apa7. Since i haven´t found a solution for apa7 with apacite and bibtex, i´d like to ask you a few questions. If there already happens to exist a working solution i´m sorry for bothering you.

The first problem concerns the DOIs: previously the entry in the reference list had to look like this: doi: xxx. By using hyperref the number was blue and could also be clicked.

Now the new format should look like this: https://doi.org/xxx

Does anyone of you know a solution, how to get this entry? I generated this doi by simply adding a doi entry in my .bib file.

Another, but smaller, problem are citations with three or more authors. According to APA6 apacitelisted all authors when first citing the article/book etc. and for all following citations in text it only listed the first name and et al.

Now every citation of a work with 3 or more authors should list only the first name plus the "et al.", even when first citing it. I think it´s possible to address this problem by simply using \shortcite{} but maybe there is an even better solution.

Here i give you a MWE:

\documentclass[parsikip=full,oneside, 12pt]{scrartcl}
\usepackage[left=2.8cm, right=2.8cm,top=2.1cm, bottom=19mm,includehead=false,footskip=10mm, bindingoffset=0mm ]{geometry}

\usepackage[T1]{fontenc}    % Schaltet auf erweiterten Zeichensatz um
\usepackage[utf8]{inputenc}     % Setzt die Zeichenkodierung
\usepackage[ngerman]{babel}     % Deutsche Sprachumgebung
\usepackage[german=guillemets]{csquotes} % Paket für Anführungszeichen
\usepackage{microtype}      % u.a. optischer Randausgleich
\usepackage{color}          % Farbiger Text 
\usepackage[hyphens]{url}
\usepackage{breakurl}
\usepackage[colorlinks=true,draft = false,linkcolor=black,citecolor=black,urlcolor=blue]{hyperref}
\usepackage{apacite}

\setkomafont{subsection}{\fontsize{12pt}{14pt}}
\setkomafont{subsubsection}{\fontsize{12pt}{14pt}}
\setkomafont{section}{\fontsize{12pt}{14pt}}
\addtokomafont{sectioning}{\rmfamily\bfseries}  % Schaltet in Überschriften auf Roman-Schriften um
\addtokomafont{pageheadfoot}{\normalfont\textsc}
\setkomafont{pagenumber}{\normalfont\bfseries}
\usepackage[autooneside=false,automark]{scrlayer-scrpage}

\clearscrheadfoot
\setheadsepline{0.4pt}
\ohead{\today} \ihead{Lukas Höhnle}
\ofoot[\pagemark]{\pagemark}

\newcommand{\anf}[1]{\glqq{}#1{}\grqq{}}
\AtBeginDocument{%
    \renewcommand{\BCBL}{,}%
    \renewcommand{\BCBT}{,}%
    }

\newcommand{\zittext}[2]{\cite[S. #2]{#1}}
\newcommand{\hervor}[2]{\cite[S. #2, Hervorheb. i.O.]{#1}}

\newcommand*{\doi}[1]{\href{https://doi.org/#1}{#1}}
\makeatletter
\renewenvironment{APACrefDOI}{%
    \global\let\old@doi\doi
    \if@doi
    \doiprefix
    \else
    \global\let\doi\@gobble
    \fi
    \ignorespaces
}{\global\let\doi\old@doi }
\makeatother

\makeatletter
\AtBeginDocument{%
    \renewcommand{\APACjournalVolNumPages}[4]{%
        \Bem{#1}%             journal
        \ifx\@empty#2\@empty
        \else
        \unskip, \Bem{#2}%  volume
        \fi
        \ifx\@empty#3\@empty
        \else
        \unskip({#3})%      issue number
        \fi
        \ifx\@empty#4\@empty
        \else
        \unskip, {#4}%      pages
        \fi
    }
}
\makeatother

\begin{document}
\renewcommand{\BRetrieved}[1]{Abgerufen am {#1} von\ }%

 
%%%%%%% Bibliography
\newgeometry{left=31mm, right=31mm, top=23mm, bottom=22mm}

\bibliographystyle{apacite} 
\bibliography{lit_memes} 

\newpage
\end{document}

I´d be really happy if someone knew a solution.

Thanks in Advance!