Well, it can show traffic data as overlay via Raster maps using the Online maps plugin, but not consider it automatically in navigation.

Here are various traffic layers of proprietary providers that can be added as online map source: https://anygis.ru/Web/Html/Download_en?shortSet=true&app=OsmandSqlite

Exactly; would have been much cleaner. The recent update to v2 already required migrating one's config. So doing it again (now knowing the process) to such new "fork-fork" would've been a no-brainer.

But the whole situation has a more critical aspect than this technical issue: the new dev's appearance out of nowhere, lack of reasonable communication, and arrogance.

There's a rough guide here: lemmy.zip/comment/23205163

Perhaps sufficient to get started...

CoMaps is working on integrating traffic data as well, which is currently considered as "App Priorities". So keep an eye on it.

NUNAV by graphmasters.net. It's more minimalistic (only one route suggestion, no offline maps), but also based on OpenStreetMap + traffic data. I still have to test it but seems a promising alternative.