.
Therefore this "trick" will not work and even cracking the 233 MiB executable would be pointless as the DLC assets are not distributed in-patch but via separate marketplace downloads instead.
Only the "Mario Mash-Up" resource pack is usable since its files are included in the RomFS.
In fact, I discovered two years ago that by playing each DLC of the old version of Minecraft: Nintendo Switch Edition [01006BD001E06000] to generate a save, and then selecting "Import Old World" while playing Minecraft [0100D71004694000], it will automatically update to save each DLC that can be played. This method remained feasible until version 1.21.101. But the official has recently fixed this vulnerability, the latest two versions v1.21.113 and v1.21.114 are no longer working and will prompt for purchase, At this time, saving is not possible after entering the game.(The v1.21.111 version seems to be partially normal, and no more detailed testing has been done.)