UPDATE: BTW, I've found some experimental support in CoMaps - supposedly, haven't tried it https://codeberg.org/comaps/comaps/src/branch/main/docs/EXPERIMENTAL_PUBLIC_TRANSPORT_SUPPORT.md May be broken easily due to the experimental status of course..
UPDATE2: Tried Moovit, it still works without google services, whoray! .. And still asks money or fills me up with ads to the brim, also as before...
UPDATE3: and it doesn't allow putting GPS coordinates in the search field, unfortunately. This adds some churn if you're switching between CoMaps and back..
UPDATE4: actually in Melbourne, Moovit didn't find anything. Google Maps does. Not sure why this happens. Google Maps in a browser tab is also an option if things get dire..