At this point with Oda's story, you don't seem to understand the developments, I said we don't know Lolo has it or not,
then Oda gave it because Lolo couldn't reach Oden's level without CoC, and you still don't understand the series and you will be wrong again
As for mihawk, there 2 options;
1- Lolo has it, and will surpass mihawk with CoC
2- If both Lolo and mihawk has CoC, then mihawk's CoC will be lowest level, similar to Yamato's, thus he will be weaker than Yonko level as well, since even Lolo with CoC will surpass mihawk's CoC
In both scenarios, Yonko > mihawk is guaranteed.
Lolo's Haki speciality is still CoA as Oda said in SBS,
D: ''This might be out of nowhere, but who in the SH pirates can use Haki? It's bothering me and I can't activate my "Love Hurricane".
Oda: ''It's these three. Their specialty haki color is in the parentheses''
''Luffy (Haoshoku Haki), Zoro (Busoshoku Haki), Sanji (Kenbunshoku Haki)''
--- SBS 71
so he will never be as good as great CoC users with CoC speciality, mihawk is probably the same, CoA speciality like Lolo.
Ladmirals might have it, you troll don't even know
Sengoku is already confirmed as CoC user, another L for you.