It's definitely possible, just requires the right tools. You could easily make the modification to PKHeX for example.Not sure you can set the galar-born flag. All the rest, including location and origin game, should be possible as it has not changed afaik, but I don't know how the generation-symbol (ie the clover for Alola, pentagon for Kalos and Remake-Hoenn, etc) is set. If it is just a value in a structure that has not changed in G8 data-structure, it should work. Otherwise it may not.
There's also to take into account the transformations that tre transfer Bank -> Home does, that probably sets the "transferred/time-travelled" flag, and such, that may make it impossible to make them 100% legal
I assure you I am intimately familiar with this subject and the source code of PKHeX. There's really not any other significant differences in this situation. The only point of contention other than height and weight would be the legitimacy of memories, which currently isn't documented.There's more than just height and weight that's been added, in the midst of things that were moved around between gen 7 and gen 8 data structures. (Cf. the the source code of pkHex, it's a very good source to begin to understand how those things work and evolved from one generation to the next)
I would not be surprised some of those are set differently between bank transfer and normal gameplay catch.
why would that spoil anybody's enjoyment playing pokemonNice way to ruin to fun. if fun can be found playing a Pokémon game.
Pip'
Pokemon Bank allows hacked pokemon from Gen 7 to cross into Pokemon HOME, and thus onto Pokemon Sword and Shield. Here's something interesting though: you can hack Galarian Pokemon into Gen 7, then transfer them to Gen 8 via Gen 7. This is significant for those who do not have modded Nintendo Switches, as it can be relatively hard to find an exploitable Switch, but all 3DSs/2DSs are vulnerable to exploitation. This essentially functions as a way to PKHex Gen 8 Pokemon with a modded 3DS/2DS. This will likely be patched eventually, and could potentially be a large ban risk to attempt. I haven't been banned, but I've only been playing around with this for a week. Enjoy!