Who REALLY owns the Darksaber? [SPOILERS IN POST]

So at the moment, Bo Katan owns it but as we know, the tradition is that if you have the darksaber and lose a fight, it belongs to the victor. Since this isn’t a rule of the darksaber itself and is more of a tradition of the mandalorian people, who would have the rightful ownership of it if it were a rule? My best guess is that in canon, we first see it being used properly be Pre Vizla. He gets defeated by both Obi-Wan and Maul. Obi-Wan is killed by Vader and Vader is killed by Palpatine. Maul is killed by Obi-Wan and refers to the same sentence as before. So since Palpatine and Vader technically kill eachother, who does it belong to? Does it lay at rest with Vader’s grave or does Luke have rightful ownership of it since it can be argued that Luke plays a large part in killing Vader too (in a physical sense and a spiritual one). If the answer is Luke, do you think he’d be fit to rule Mandalore and wield it properly?

So at the moment, Bo Katan owns it but as we know, the tradition is that if you have the darksaber and lose a fight, it belongs to the victor. Since this isn’t a rule of the darksaber itself and is more of a tradition of the mandalorian people, who would have the rightful ownership of it if it were a rule? My best guess is that in canon, we first see it being used properly be Pre Vizla. He gets defeated by both Obi-Wan and Maul. Obi-Wan is killed by Vader and Vader is killed by Palpatine. Maul is killed by Obi-Wan and refers to the same sentence as before. So since Palpatine and Vader technically kill eachother, who does it belong to? Does it lay at rest with Vader’s grave or does Luke have rightful ownership of it since it can be argued that Luke plays a large part in killing Vader too (in a physical sense and a spiritual one). If the answer is Luke, do you think he’d be fit to rule Mandalore and wield it properly?