But luckily it automatically readjust itself to earth automatically every half year exactly for these events. So on 15.10 we will know, if it is really lost. In either case, the end of its mission is near anyway, because the nuclear batteries are near its end.
edit: Nasa has a blog post on this https://blogs.nasa.gov/sunspot/2023/07/28/mission-update-voy...
In vanilla, all antennas are omnidirectional and as long as there is a working solar panel on a probe, it can be used as a relay sat.
But it does gives you a similar feeling when you schedule a maneuver on a point where the planet/moon blocks your signal, and you only realize after it's too late