I have to test the overworld whale (probably get a different sprite than a dead troll, but doing Direction Fix on it already could have fixed the invisibility because it has Random movement), but I think the internal escape timer works now too. It's not something I've ever used before, but there's resources out there to explain stuff that the built-in help doesn't.
About the Troll path, I'm not seeing any place in Uzholm where the Trolls even check for you having Comp Langs going or even the Uz book item, and they never speak gibberish. Maybe the code in the "hail attempt" & "Comprehend Languages attempt" battle events was reversed before, but I fixed those. Just not seeing gibberish from Trolls anywhere. Dragonewts & Mostali can do gibberish though.
The Deployment process shouldn't give any trouble, but I always playtest because I use "Exclude Unused Files", and that can make mistakes.
As for recommending RPGs made with RPG Maker, aside from NSFW stuff that I've been playing or patching lately: easiest is to do the itch search for games with the tag "RPG Maker", although I wish I knew how to filter OUT the ones I don't want like Horror. There's unfortunately a LOT of crap out there (Sturgeon's Law), and sometimes the way to be a better developer is to realize what you don't like seeing other people do.