Different people see it differently, but yeah, generally, BTC is seen as the true store of value to be hodled for a long time, 4-5 years at minimal, to see good results, accumulating little by little.
Other coins cannot be used for the same logic simply because they are not as stable.
Basically Bitcoin is also not a stable coin because Bitcoin also often experiences increases in every cycle like every four years and can also experience decreases when its holders start to panic due to something like war and also the increase in interest rates at the FED. So if you only invest in assets that can be stable in value, it will not give you more benefits except to save the value of the money you put into the investment. That is why at this time there are already many people who want to use their money to buy Bitcoin because they can hope for a four-year cycle to get financial freedom when they have more profits from the investment.
I can agree with you that bitcoin is a true is store of value with potential when you buy and hold for long term. But I disagree with you that 4 to 5 years holding is not enough for a real bitcoin investors who truly know what they they are doing, rather bitcoin holding should be from 5 to 10 years or more to me in massive profits.
Holding for five years after buying it by DCA or by accumulation by using stages in every week or month is also a good step and has also been quite long although for investors who can be patient more than that will also be better for the sustainability of their own investment. Moreover, after five years every investor can also buy again in the same way after they release some Bitcoin that they have collected from a low price in order to take some profit. Because every investor also does not have to sell all their holdings after they have collected Bitcoin for a fairly long period.