Not really. Assets are more or less portable with some effort, but not the logic. There are tools to help you port your code but it more or less requires a complete re-write.
though to be fair, a big part of writing the logic is figuring out the logic, designing the system and interactions etc. so while it is a big task, its much smaller than starting over from scratch
Not necessarily since different toolsets have different logic operators and transformers and the logic isn’t always 1-1. I’ve moved enough code from even the same language but different implementations, nothing to say of entirely different system and languages.
Speedruns show how much of a bodge jobs a lot of games are and how much they could be broken.
Fair enough, but it’s still a massive time and resource sink. You also can’t really implement new features during the re-write lest project creep gets out of control, and even after the rewrite the product will be less stable than the original for quite a while until it’s had sufficient time to mature.
It might be worth the investment to ditch proprietary software from a predatory company and jump to open source though, which can’t really pull shit like this in its future.