Back in 2017, the topic of stablecoins like Tether completely crashing to $0. Is Tether still safe to hold your funds on?
Impossible since it was backed up by $1 and it will only reach 0 if the the dollars value became 0 too which is impossible. In regards with your question yes it's safe to hold your fund it will save you from crashing too if the market will crash, also it's the most stable coin in the market so you should not worry about it that much, it's impossible for it to reach 0.
While it is impossible for USDT to reach 0 one can never be too cautious when dealing with a stable coin which not even to this day has given evidence of the 1:1 collateral backing it up. Yes, most markets rely on USDT but if a major roar was to happen one can imagine great change in the crypto sector and a rapid shift to other stable coins.
All I'm trying to say is that USDT (Tether) is more risky than other stables like USDC due to their unfolding jurisdictional case, due to which one can't predict with certainty which direction it will take.