In most custodian wallets like trust wallet staking is available for most crypto currencies including trx.is it better to stake such a coin or hodl it
It is only wise to stake coins in a non-custodial wallet. Not an exchange or service which doesn't give you access to the keys or seeds tied to your crypto funds (custodial). Most people don't understand this, so they end up getting "rekt" in the process. Even when you stake coins on your own, there's always the risk of losing it all overnight. That's due to market price volatility.
If a PoS coin has a high inflation rate (APY), then it's likely prices will keep falling until it goes all the way down the drain. I'd suggest you stake (lend) stablecoins on a "De-Fi" protocol such as Aave or Compound.Finance just to be safe. Stablecoins usually retain their peg to the US Dollar (especially USDT), so you've got nothing to lose. Just my opinion

Small but passive in the sense that it will not fall that much in terms of value, if you are okay with a small percentage of earnings then if a stable coin is available to stake then you can go for it and grab that small passive way in gaining profits, unlike with crypto coin where the chance of a losing a portion of your money or the entire amount of your investment may take place along the way.
You need to really take time in order to understand how the market for your chosen coin/asset works and how will you earn passive benefits.