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:

kaobiblio
package's\sidecite
command 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?\sidecite
sends\parencite{#1}: \citeauthor*{#1} (\citeyear{#1}), \citetitle{#1}
into amarginnote
. (b)kaobiblio
package 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.