A visualization:

Not recommendable.
Different information types shouldn't be intermingled. (e.g., Why use footnotes in the first place? Put the footnote texts inline in the main text, to see.)
Plus: Repeating the same info in the page bottom can be avoided by using only the superscripted parencite part\textbf{\textsuperscript{\parencite{#1}}} in the text.
And so on....
More design thought is required.
MWE
\documentclass{article}
\usepackage[paperheight=4in]{geometry}%for one screen image
%from kaobiblio.sty:
\usepackage[
%style=numeric-comp,
%citestyle=authortitle-icomp,
citestyle=numeric-comp,
%bibstyle=authoryear,
bibstyle=numeric,
sorting=none,
%sorting=nyt,
%sortcites=true,
%autocite=footnote,
backend=biber, % Compile the bibliography with biber
hyperref=true,
backref=true,
citecounter=true,
pagetracker=true,
citetracker=true,
ibidtracker=context,
autopunct=true,
autocite=plain,
]{biblatex}
%\usepackage{hyperref}
%
\addbibresource{biblatex-examples.bib}
\newcommand{\myfnmarktext}[2]{%
\textbf{\textsuperscript{\parencite{#1}}}%
{%
\renewcommand{\thefootnote}{\relax}%
\footnotetext%
{%
\kern-1ex{\textbf{\textsuperscript{\parencite{#1}}}}
\citeauthor*{#1}
(\citeyear{#1}),
\citetitle{#1}. #2%
}%
}%
}
\begin{document}
\begin{verbatim}
\parencite{#1}: \citeauthor*{#1} (\citeyear{#1}), \citetitle{#1}%
\end{verbatim}
Some text\footnote{A footnote.} and some more text\myfnmarktext{aristotle:rhetoric}{This, obviously, is a reference.}
and more text\footnote{Another footnote, but not citing \parencite{aristotle:rhetoric}.}. And the famous philosopher
again,\myfnmarktext{aristotle:rhetoric}{This, obviously, is a reference too.}
and another normal footnote\footnote{The next footnote.}.
\printbibliography
\end{document}
Edited to add:
kaobook class's use of marginnotes (for footnotes and for bibliographic references) in effect makes it a two-column layout:

From a textboook
From kaobook's documentation: note the repeated bib ref:

kaobibliopackage's\sidecitecommand to typeset the references at the bottom of the page instead of in the margin near the text? (Presumably in a block separate from the actual footnotes, not intermingled.) Do you want to do it without using the kao class and packages, or with them? – Cicada Jul 26 '21 at 08:05\sidecitesends\parencite{#1}: \citeauthor*{#1} (\citeyear{#1}), \citetitle{#1}into amarginnote. (b)kaobibliopackage activates biblatex's numeric compressed style:citestyle=numeric-comp. (c) You can do(b)likewise; for(a)as a footnote without a footnote number, you could do footnotemark as the\parencite, and the corresponding footnotetext as\parencite etc, maybe with the parencite as text superscript. (d) Real footnote numbers and bib reference numbers will follow each other (1,2,3,[1],4,5,[1],[1,2],6,7,...), so a way to easily distinguish them will help. – Cicada Jul 26 '21 at 09:02...[1]...[1]...[1]..., and the "footnotes" will have three separate[1]s amongst the real footnote numbers. All the same reference, of course. Design thinking will be needed before code thinking. What output do you want to achieve, specifically? – Cicada Jul 26 '21 at 09:12\vfilandvboxes etc). – Cicada Jul 26 '21 at 09:35