What altcoin season are you talking about? As I've said, altcoins are stuck in their past ATHs while Bitcoin has been breaking one ATH after another. The most solid and trusted altcoins like ETH, LTC, XRP, and so on have yet to register new ATHs for years.
The garbage Solana is almost near its 2021 ATH but that's only in terms of USD. In terms of BTC, it's still far from its 2021 ATH. BNB, on the other hand, had registered a new ATH several months ago but, again, that's just against the USD. Since we're talking here of BTC versus altcoin, BNB's ATH remains in 2022.
The point is, if we're pitting altcoins against Bitcoin, the data clearly show that Bitcoin is the winner. The top altcoins failed to outperform Bitcoin. LTC's ATH in BTC is still in 2013. ETH's is in 2017. XRP's is also in 2017.