It seems that most traders are comfortable using centralized exchanges and accept the risk of spontaneous exchange shutdown.
Noted that traders choose trusted and popular exchanges, not about centralized or decentralized. Since many centralized exchanges have good trust scores and high volumes, traders prefer to choose them. Although no guarantee about profits, that trust & volume can create a higher chance to get profits and they will be safer to trade as many people are trading crypto coins there.
I doubt a bit about the risk of spontaneous exchange shutdown. I think if it is top or big centralized exchanges, they must pay taxes and have been recognized by the government. So, it is quite safe to trade there and shouldn't be any rumors of sudden shutdown. I assume the risk both in centralized or decentralized exchanges almost the same. Both are also possible to close suddenly.
Exchanges overview:
https://www.coingecko.com/en/exchanges