No Altcoin should be kept in long-term wallets. We have seen the clearest examples of this in the past. People invest their money in the coins they trust very much, and they can't even get half of that money after years. You have to be careful.
if the market is bullish and the chart shows it is above and you buy it for long-term hold until 2025 then that is your mistake,
because if the market is bullish, of course bearish will come in the future,
if you buy when it is bearish and you hold it for 2 to 3 years of course I will sure profit will come to you.