I thought it'll be really good to make a thread that focused on the strats & bugs that exists in the game.
p.s: yes, mainly you want to put the a list of strats at the "Guide" section, but it's best to make a thread as a whole so that the community can easily contribute.
You can get softlocked during "Fishing" section if you made the fishing lane correctly (so that you can get the fish), right before the start of the event.
In order to evade the "softlock", wait at least 10 seconds after Shianan end the conversation (or after Shianan's fishing animation ended), then reset the checkpoint. This will put you back to the fishing lane and freely move your character. If you do this way too early, you'll get infinite loading screen, resulting a corrupt save.
You can get softlocked during "Dinner" section in Chapter 7 (Volcano) if you interact with the dinner table (a pop up text will appear) while Carto entering the dinner cutscene. This interaction will make the pop up text stays in the screen and no game input can be given, resulting an infinite dinner cutscene.
At the moment, there's no solution to fix this issue. Restarting the checkpoint might corrupt the save.
(Ahh yes.. another softlock thread..) You can get softlocked during "Flower" section in Chapter 4 (Grassland) when you doing a converstion, while bypassing the movement animation (the slow walk animation when you talk to a character), This interaction will make your character falls into an animation loop without any input can be given.
At the moment, there's no solution to fix this issue. Restarting the checkpoint will puts you back into the early state, forcing you get three flowers back.