What are the solutions for creating a route on the desktop for subsequent uploading to a mobile navigator?

Question

satellite navigation

Good afternoon,
please tell me what is the solution for creating a route on the desktop (bike, running, walking) with the possibility of subsequent uploading to the navigator on the phone.
In other words, sit at home for half an hour to draw the exact route based on the satellite / scheme map, guiding the track along roads, paths, etc. and after its completion, download it to a certain mobile navigator in order to allow you to put your phone on a bicycle and ride pre-laid routes.
Of course, you can simply use the same Yandex.Maps or Navigator, but here it’s tourism, which involves laying a route in places where no one has yet drawn in folk, osm, etc. maps, or let's say the creation of a custom route in general where there is no road as such.
That is, the point is to click on the track on a satellite-based computer, and then the phone shows where you need to move according to the route.
It seems like there is a solution like Strava, but it still works unstable, the web constructor often crashes.