Recently, everyone has been talking about whether projects will migrate before or after the upgrade/hard fork of that mainstream public chain.

I'm actually more worried about something else: if the oracle price feed is a half beat slow, your position might be "migrated" to liquidation first.
To put it simply, liquidation doesn't look at the price you think it is; it looks at the fixed price in the contract.
Feed delay = the market has already dropped/risen significantly, but the contract still thinks everything is calm; when it updates suddenly, the health factor drops straight from a yellow light to a red light, leaving you with a very narrow window to add margin.
There's also an even more annoying situation: during on-chain congestion or maintenance, your transaction queues up, and you can't add collateral or repay, but the feed still comes in.
Liquidation bots don't show mercy...
Before I leverage up now, I always check: the update frequency of the feed, whether there are backup sources, and if they will pause or widen parameters during extreme conditions.
I'd rather earn a little less than get caught out by delayed updates.