Well, I got a good news and a bad news.
The good new is that I have made a lot of progress in my project for the jam and had a lot of fun working on it.
The bad news is that I couldn't finish the project in time. I'm at about 95% done, but I'm facing some really bad code incoherence from fixing the remaining 5%.
There are also minor some positioning issues for certain UI/Graphic elements to fix and I can't reach the point where the game is functioning properly as a game.
If I had 1 more day, I could probably finish everything, but not in the bit-more-than-1-hour remaining. Especially since I have not done any build debugging. (For all I know, I could be unable to build a client/game to submit even if I rush/finish everything.)
The main culprit of this bad news is, surprisingly not that I chew more than I could eat, but it came from an major issue with Unity 2020.2.X (especially present on the version I used 2022.2.16) live compiler being totally unreliable and slow as hell.
The issues I faced during the last 3 days with the Unity editor were, to say the least, abnormal and this never happened with any version from 2020.1 or prior. From the editor's UI not updating from selection (and, sometime, throwing an error of bad cache) to the point where the compiler would take 30+ seconds to compile the script in the project which is not even 3000 lines of codes (on a PC that has a LOT of computing power). To be able to work relatively fast, I had to litteraly close the Editor approx. every 2 hours, go into the project files and delete the content of the "Library" folder and reopen the project. After about 5 minutes or recompilation, the Editor works normally again by that point for about 1 to 2 hours and, then, slowly get slow.
Imagine if changing 1 line of code in your project was always took 30 secs before you could test it out. If you change a line 20 times, you just lost 10 minutes waiting and that doesn't includes the time you actually test the damn thing out.
At the moment, this give me the idea that Unity 2020.2.x is not properly optimized for using it in Dev Jams of such short length or, at least, not in my case.
Here's a final view of what the project looks like :
Will I finish the project? Most likely, but it will requires a lot of work to untangle all that spaghetti codes I have wrote for the sake of testing things fast.
Good luck to all the others!