Manage your finances best in this extreme market. Yes, all altcoin prices follow the btc price, there are even altcoins that are down by 90% more so be careful in determining your investment choices. for example you have a 100% chance to buy a lower price why should you do this instantly in this decision. I advise anyone here to buy btc and buy gradually to balance your portfolio when the market situation changes suddenly.
Your suggestion would be well considered if it was for Bitcoin because so far anyone can buy Bitcoin at a discount before Bitcoin goes back to the high price. And if the investment is only around Bitcoin and a few other top altcoins, I don't think anyone should be afraid to buy them now because rest assured the profits will come to those who hold Bitcoin and top altcoins like ETH and BNB.
maybe my choice is BTC.ETH and BNB. and I don't invest in coin memes despite having a strong market cap.
Your choice is very correct and I think it would be best if you want to save it really well before releasing everything at Bull time.