I note that there is no DUDE manual or documentation at the newer MT DOCUMENTS SITE ????

This will not stand, ya know, this aggression will not stand, man.
from Big Lebowski

Not sure if thats a yes or no answer LOL

Not sure if thats a yes or no answer LOL

Is abandoned.

So the alternative is Zabbix ?? ( not the $$$$$ PRTG of course )

"Abandoned" is seem right. No new docs, still on website, but no updates in years... No official communication AFAIK.

Dude does a couple things, visually showing up/down/etc on a "map" & tracking statistics/logs/etc. And, still works just fine...just old...but since it doesn't change, little chance it to be broken .

Alternatives depend. If it's more tracking/logging, then @Jonte's SPLUNK (viewtopic.php?t=179960, Splunk costs $, but at smaller RouterOS sizes, it's free),
OR, Prometheus/Grafana are more OSS ( https://prometheus.io/docs/visualization/grafana/ https://prometheus.io ).

I don't know what the current "map" based things, but Zabbix is likely better at the "monitoring" side. But never used Zabbix, so dunno.

strange situation, still in new package, still compiled...
I don't understand...

New package with old unmaintained code, just to be possible to install it on new ROS version. Logic - while it works ship it...