I understand where you are coming from but I would take the opposite approach, namely not how quickly and conveniently you get back to exactly the same state (because that’s actually really hard) but rather how quickly and conveniently you can get to work, or play, or do whatever you do, from the most generic of hardware and software, including of course yours. What this perspective suggests though is NOT to consider your stuff precious but on the contrary, to assume it will inevitably disappear, due to any reason, from a freak event, e.g stolen to the mundane, e.g. hardware failure over time.
IMHO it’s much more relaxing to consider hardware disposable. My own heuristic for this is to understand what a distribution does, save only MY data (e.g. things that I produce, for example in a data it would be my saves but not the game itself) and buy only well supported hardware.
Window Rules and Custom Shortcuts from KDE Plasma, just earlier today I binded Meta+Ctrl+k to start Konsole in the directory of my latest modified prototype, open a per directory script which e.g. opens a browser tab, opens Vim in the file to edit, positions those windows properly, here browser on left half, console on top right corner.
Window Rules with its window picker is very convenient to get conditions and properties to apply. Custom Shortcuts is just a list of shortcuts you can add to start anything from anywhere.
Also I added my own wiki as a KRunner Web search, so if I type Alt+Space then PIM keyword it searches directly to my PIM from the center of my screen, also from anywhere.