I'll be posting this issue on discord as well, but I assume the new Flooded Sewers interior uses coding from the flooded mod, that creates a conflict with OopsAllFlooded. The result is that the sewers is INSTANTLY flooded.

Can you make a config option for us if we are using map modifiers to increase the max radius of the flooded areas?

Typically gaining stamina will give you back your jump, this doesn't happen with the oxygen canister stamina and it probably should to avoid softlocking

on vow and offense i've seen it that the above ground floods no longer work
such that the flood stage is permanently stuck below ground, but the facility flood level works fine
also if it is not too much cost on performance having the underground flood stage stretch wider for potentially larger dungeon gens on rend and dine would be preferable as i have seen dungen go past the radius of the water especially with SCPBDungen

Flood size too small with large rend/dine gens or using SCPBDungen as per #1

Would it be possible to have a config file to be able to enable/disable the "Oxy-Canister" in the shop?

The reason why I'm asking this is because I would like in the future to pair the mod with LateGameUpgrades' "Diving Kit" so that we could explore underwater without having anything in our hands to be able to pickup scrap in a less cumbersome way.

Side note: I've also suggested some possible modification/improvements of the Diving kit for LateGameUpgrades' here in case anybody happen to find this issue and be interested in such features:

Malcolm-Q/LC-LateGameUpgrades#321

Facilities with very low entrance spawns can cause difficulty spikes, if the flood checked main entrance height this might be more fair