And what benefit would the project actually gain by running on various blockchains?
It is understandable for projects like USDT to have multi-chain support because stable dollar coins are used as base currency on crypto exchange and required frequently by users for trading purposes. Hence, the more network these coins are on, better and cheaper it would be for the users.
But GOLD is primarily an investment coin. I don't think $1-2.5 fees would be considerable factor for anyone looking to invest in gold for notable period. Moreover, Ethereum is biggest and most secure Smart Contracts supporting blockchain. Shifting to the other blockchain will just open gate to other vulnerabilities.
I would recommend to keep projects like DIGITAL GOLD on single and most secure blockchain i.e. Ethereum (apart from Bitcoin).
Various blockchains also means advertising.
And I think that although it can be seen as an investment coin, GOLD team would like to get to (much) higher volumes traded (and bought).
The "$1-2.5 fees" were more like $3-4 for me in the last 2 months and I believe that not everybody buys or sells 10k$ gold at once to say indeed that fees are insignificant.
And while Ethereum is indeed big, I simply don't like it. Never did. And no, Ethereum is by far not not only secure altcoin.
All in all, recommending as you did sounds quite strong. I would not go that far. I believe it's 100% up to GOLD team to decide (or ignore!). There are plenty of details to think about and you or me may easily miss quite a big number of them.
but if ETH 2.0 will be further postponed with no clear launch date at an acceptable time, then I am sure many projects will turn their eyes to other blockchains, to be honest, many of them already did it.
You did understand my point, thank you for that.
Indeed, Ethereum has already a history of failed and postponed upgrades/releases.
The only reasons I see for remaining only on ETH these times would be expected long development time for getting onto another chain too and expectations that GOLD token will become much more interesting for Bitcoiners only when Bitcoin gets nearer to the next ATH (and GOLD will act as a safety net in the next "crypto winter") so there's still time for ETH to get in shape until then.