Get the source code.

git clone git://git.sv.gnu.org/emacs.git

Install the prerequisites to compile it.

sudo apt install make autoconf gnome-tweaks gnutls-bin libgif-dev libgccjit-14-dev libgnutls28-dev libgtk-3-dev libmagickwand-dev libncurses5-dev libncurses6 libsqlite3-dev libtree-sitter-dev libxpm-dev texinfo

If case of an error involving libgccjit, do gcc --version and install the matching version of libgccjit-##-dev

Compile

cd emacs ./autogen.sh ./configure --with-pgtk --with-native-compilation --with-imagemagick make -j8

Remove Apt-based emacs.

sudo apt install emacs-

Install

sudo make install