If you could get a guaranteed 4% this time next year, would you take it?

The reason being, I am now seeing fixed USD deposit accounts paying up to 4% for 12 to 18 month fixed terms. No risk, with money backed by deposit guarantee scheme up to a certain amount.

Yes, I know I'd still lose to inflation, but given that 4% is a “normal” stock market return, is this so bad?

Part of me wants to average in to stocks as they go lower, but equally the prospect of a guaranteed 4% (which can be a lot with a big deposit) is enticing in an uncertain market. What would you do?

(Btw I am not based in US)