Idk much if it can be compressed or not, but it's now hard to mod or do anything without installing from Google Play just because the XAPK file only is already 4.06 GB, exceeds 4GB standard for signing V2/V3 signature.
If magic happened, somehow we need to remove the need of those heavy assets within XAPK, or making separated OBB.
Also, this game implemented PairIP. I have to bypass it and re-pack into Anti-Split APK without its asset APKs (too heavy if including them).
About "assets", I unpacked all assets in those asset APKs and tried to copy all to both address:
Android/data/com.ujoy.sof/assets/...
Android/data/com.ujoy.sof/files/assets/...
But also didn't make the game run!