Migrating away from apt-key adv

I have quite some scripts that are still using the apt-key adv command. And I know this command is deprecated. And soon becoming unable to use. Correct me if I'm wrong, but Debian 11 is the last Debian version supporting apt-key. I also know we need to migrate to fetching the .asc file directly and put the file into the /etc/apt/trusted.gpg.d/ folder. How do I convert from the command below to a wget of this .asc file? Where can I find the .asc files I need? Are those .asc files even provided by Linux Mint / X2Go or other repos? The command I use for downloading keys at the moment is: First example: apt-key adv --recv-keys --keyserver keyserver.ubuntu.com A6616109451BBBF2 Second example: apt-key adv --recv-keys --keyserver keyserver.ubuntu.com E1F958385BFE2B6E How do I retrieve the .asc (or .gpg) files from those repos?