the problem is that any quota place obtained in the pool doesn't count at all for the Olympic 10km race
you have to earn your spot in the specific OQR for this discipline (Fukuoka and Doha, basically)
in the women's 10km, however, I think there are only a few girls who already have a OQT in the pool: for sure, Katie Grimes, Anastasiia Kirpichnikova; then I'm not sure about Sharon Van Rouwendal, Leonie Beck.
I think it's all.
among the men, both and both swimmers and stop.
I don't think the guys have a good 1500m/800m time (maybe Logan Fontaine, but it's improbable) and both our guys Paltrinieri and Acerenza this year haven't swam the OQT yet 'cause they're focusing on this race to earn the quota place (our technical director said without any problem that our target is getting all 4 quotas here in Fukuoka, without having to participate to the next world champs in Doha with the Olympians), but I'm pretty sure that they will get an OQT in the pool the first time they really swim that races seriously (and Paltrinieri is going to swim the 800m and 1500m in the pool at this world champ, so, it's just a matter of time)
p.s. I'm surprised have not chosen Marc Antoine Olivier for the 10km race (but it looks it's just a disciplinary choice, rather than technical)