I've only used aliases twice so far. The first was to replace yt-dlp with a newer version because the version that comes pre-installed in Linux Mint is too outdated to download videos from YouTube. The second was because I needed something called "Nuget". I don't remember exactly what Nuget is but I think it was a dependency for some application I tried several months ago.
alias yt-dlp='/home/j/yt-dlp/yt-dlp'
alias nuget="mono /usr/local/bin/nuget.exe"