Console TDM vs CDM
When comparing Console TDM vs CDM, the Slant community recommends CDM for most people. In the question“What is the best Linux Display Manager?” CDM is ranked 3rd while Console TDM is ranked 5th.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Very lightweight
It doesn't require much more than a POSIX shell and dialog/Ncurses.
Pro Has almost no dependencies
Pro Supports virtually any DE/WM
Pro Very lightweight
Takes up almost no system resources.
Cons
Con Unmaintained
Console TDM has never been updated since 2015. You should instead use CDM, tbsm, or any other option because such an unmaintained program could lead to potential security issues. Like CTDM, tbsm can run Wayland sessions.
Con No customization
Apart from changing the console colors there isn't much you can do.
Con Very old
The display manager looks ancient and will look ancient due to the lack of customization.
Con Bad documentation & install guidance
Con Bad availability in distros
There is no CDM in distros repositories (only in AUR on arch)
However you always can compile it from source.
Con Curses-like interface
Very simple and minimalistic graphical interface.