To be fair, it's hard to know how satoshi feels about what's going on with bitcoin. Although bitcoin has deviated from its original purpose as an investment asset and is increasingly regulated and controlled by governments. But that inadvertently helped him become one of the richest billionaires in the world. If I remember correctly his net worth is over $100 billion as he is said to hold over 1 million BTC, and I don't think anyone would be sad or angry about owning such a huge fortune.
Furthermore, even though it has strayed from its original purpose, bitcoin still retains its decentralized nature, so why should he be angry when bitcoin's core value remains the same?
Well, Satoshi is a cypherpunk with libertarian ideals. Wouldn't he be angry because governments took advantage of it? Market prices going to the moon alone, would not satisfy him completely. While governments and institutions have acquired large amounts of Bitcoin, the core Blockchain remains decentralized. At least, for now. Let's hope such entities never manage to accumulate most (if not all) of the circulating supply. Otherwise, things would become worse.
In the future, it's expected Bitcoin would've already scaled to the masses. And I'm not talking about centralized, off-chain scaling solutions like the Lightning Network. But rather, the main Blockchain itself. With upgrades such as Taproot (now in effect), MAST (coming soon), etc, Bitcoin will become faster and cheaper to use in the long run. Of course, altcoins will always be much cheaper. But they often sacrifice decentralization in favor of convenience. When you see chains such as Solana and IOTA experiencing network disruptions, you'll notice how unreliable they are. Nothing comes close to Bitcoin in terms of security, reliability, and decentralization. The future holds many surprises, so we should expect the unexpected.