const quick = {temp: {customer:{_id: 1}}},
vehicles = {vehicles: [{owner: {_id: 2}}, {owner: {_id: 1}}, null, "bla", 123, ["array"]]};
const d = vehicles.vehicles.filter((vehicle) => vehicle && vehicle.owner && vehicle.owner._id === quick.temp.customer._id);
const d = vehicles.vehicles.filter((vehicle) => vehicle?.owner?._id === quick.temp.customer._id);
const d = vehicles.vehicles.filter((vehicle) => vehicle instanceof Object && vehicle.owner instanceof Object && vehicle.owner._id === quick.temp.customer._id);
const d = vehicles.vehicles.filter((vehicle) =>
{
try
{
return vehicle.owner._id === quick.temp.customer._id
}
catch(er){}
});