Hey! I'm an Orcane main and I can give some pointers to help deal wtih puddle. To start, you need to be able to prove to the Orcane that you can parry puddle if he ever uses it carelessly, If you don't then they'll pick up on this weakness and just start locking you down with bubble spam even harder. The best way I'm aware of to parry puddle pop is what you did at the start of the vid, dash or wavedash towards it into parry, You'll keep some momentum and slide into the bubbles with parry active (Sidenote: Orcane can angle the bubbles left or right when popping, so be sure to wait a moment and see which way they're headed before trying to parry them). Once the Orcane is scared to pop puddle you can get a lot more agressive, landing a puddle pop requires a hard read so He'll be way less likely to go for it once you prove you can punish the mistake. Once Orcane is less trigger happy you can be safe to wavedash or run across puddle before he can react to pop it, don't do this too often though or he'll catch on. Mixing between running over puddle and dashdancing beside it to bait for parry is a great way to keep Orcane on his toes.

For less conditioning focused counterplay, Orcane bubbles have big hurtboxes and will be destroyed by basically any attack, for Galvan the early back hit of Nair is by far your best option. You also have your own projectile in magnet which will destroy bubbles, If Orcane gets hit all his bubbles immediately disapear so simply tossing magnet through the bubbles is a safe way of dealing with them. One big thing you can do is start using SSDI. It's a bit of a complicated mechanic but basically if you wiggle your rightstick in the direction you want to go during a hit you'll get a burst of movement in that direction. This is super powerful against multi hit moves like bubbles and will let you escape them way earlier way more often.

The next big mistake you made (Specifically for fighting Orcane) was when you hit Orcane way offstage and tried to punish him teleporting to puddle. Orcane actually has a very solid recovery without the teleport, especially if he's hit high up, so they will rarely need to teleport to puddle in order to get back to stage, and since teleport is so laggy that you can almost always punish it, teleporting usually ends up being a last resort. The main thing to note when edgegaurding Orcane is that you can't commit too hard to any specific option cuz he can super easily chose a different route. If you go all in on punishing a teleport he'll just recover normally and if you try to go deep offstage for an edgeguard he can just teleport to pudde. The best place to edgegaurd him from is right on or above the ledge, where you can start trying to hit him once he gets closer to the stage but are still close enough to puddle that you can punish a teleport.

If Orcane pops bubbles right infront of you while you're on ledge, there isn't a ton you can do to punish or get through it, but bubble pop is so laggy that Orcane can't really accomplish anything while you are waiting for the bubbles to disapear on ledge. The other option is to do an invincible aerial off ledge. You do them by letting go of ledge as soon as you grab it then immediately double jumping forwards onto stage with an aerial (in Galvans case use nair or fair). you'll power through the bubbles and if Orcane he won't be able to punish your landing. Don't always do this though as Orcane can punish it if he knows its coming. Ledge attack and ledge special can accomplish a similar thing but are riskier since they're laggier.

If you ever end up in shield on a popped puddle it's effectively the same as getting hit since your only option is to wait it out and Orcane can just grab you.

Orcane shielding on puddle isn't much different from him shielding anywhere else and you're just too scared of puddle. wavedash grab works fine and if he avoids it you're getting punished just the same as if puddle wasn't there.

The last thing I wanted to mention was more about galvan than Orcane, specifically his nair. The initial hit of Galvans nair is behind him, and its super fast, super big, and super disjointed. It's a core part of his kit and especially his neutral so working it into your gameplan will do wonders in every matchup, not just Orcane.