I think it's worth investing a small portion of the money set aside for investments in some memecoins. But the choice shouldn't be made blindly, by randomly tapping the screen, you should research several options and do proper analysis. If bitcoin is more of a long-term investment, you shouldn't hold memecoins for too long, they tend to be very unpredictable.
I wouldn't do that, imo - better to keep these funds stacked into BTC as well.
Memes are the bane of profit.