Sorry for late joining to this topic.
They fixed this already since 1.9.2 version for the "fixed" roll and randomized it already BUT only for the roll. Everything else still the same, FIXED for heist, community chest, sticker packs, and so on.
The differences in cake event / car event the special buddy event, its still fixed but with the multiplier, if you change the multiplier into x1, its fixed for the x1 only if change to x20, it fixed to x20 only. so there no win win situation here.
the thing about monopoly go is, actually not everything is server sided but im still not sure how they do it. Like the glitch for getting dice bar fulled via invitation it was base on client side (and check the version of the client on server side before sending request) and so far there is around 10 people using this method on newest version 1.11.0 - 1.11.5 by decompiling sources of 1.10.0 into 1.11 and again i think its just bug from the game that the developer miss out a lot.
and i found out that rolling at active connection is different with offline.
etc, i manage to always "double" roll the dice when there is connection but when i turn off the internet the always "double" roll wont be activated.
may i know who you are?