I don’t understand what this means. But I do very much appreciate @stephane posting his experience for other users.
The “How To” for this is based on a default system installed from the Lx 4.1 ISO upgraded and then converted with the explained steps. Thus there would be no 32 bit (i686) packages involved, no third party software, no other OM packages, ect. So if a user has any of these there obviously may be some problem solving involved. That is the nature of this type of upgrade. Also this is one reason of several reasons why any Linux distro will recommend a fresh install over a system upgrade.
For third party software it is impossible for us to predict what may happen. One big reason would be the entire system tool-chain is going to be different. The library packages will mostly be different and newer. Completely different versions of the compiler software gcc and clang/llvm. So it may be advisable to remove third party software, then do the conversion, then re-install the third party software.
Frankly if I had a system with a lot of added packages from OM and/or third parties I would not do this conversion I would do a fresh install. Doesn’t mean it can not be done, but problems are to be expected and solved by user. We will try to help if we can.
Regarding third party software a Linux distro does not have control over third party entities so we just can’t do much. A distro like OM with no employee’s, no one full time, not much money or other resources to speak of just can’t be responsible for something like this. So we will try to help in these matters if we can.
The standard “Third Party Sofware” statement:
If user chooses to install third party software then any problems are the users responsibility.
Your choice=your responsibility.
Off-topic Post-edit: Regarding the “no money” comment above every OM user should have a least one of these shirts.