The large difference
From time to time somebody says ‘ConEmu is still running the Windows cmd.exe, it’s not a bash’.
That is absolutely wrong.
When user starts terminal, it runs some console application.
These applications and many others all are command-line interpreters (CLI) or ‘shells’. They do ‘read-evaluate-print’ cycle, aka command execution.
ConEmu is a Windows terminal where you can run any shell you want.