Me personally: always with the old but familiar.
The game's point: go Marie Kondo and update at all times because people die if you don't

There's an exhaustive review about steam deck compatibility on the website of Steam Deck HQ.
Regarding the 21:9 ratio, we had some problems at first, but they shouldn't be anymore.

That was surprisingly tricky! We first went head first and bloated the game with tons of references and tech jokes and nerdish easter eggs, but when the first playtesting rounds came back, we were forced to kill almost half of them... Because players got frustrated very quickly.
TL;DR: test a lot and NOT only on your game dev friends

Yes but only on Mondays and Fridays

It's about 4-5h long however some testers played more than 10h! If you're interested in all the little hidden stuff, there's a lot to discover. There's replayability if you want to nail the ending better (but I'm not going to spoil why)

Unfortunately not, the game has been thought as a single-player adventure from the start.

We have been working full time since September 2020. So about 2.5 years

You start by not updating your phone

Thank you so much <3

Hi! Narratively speaking we draw a lot of inspiration from Pixar and Dreamworks movies (mostly the humour and the compelling characters). Toy Story and Inside Out would be the major ones.
For the gameplay however, it's games like The Magic Circle and their weird mechanics that inspired us the most :)