I only see one viable use case for Bitcoin, which is that government or other entities enforce it as some sort of reserve asset.
There is real economic value, e.g. it costs $2 to mine an ounce of iron and it can be used for XYZ in the real economy.
Then there is speculative value, which is people buying an asset in the hopes it will go up - very little economic utility.
Bitcoin doesn't have any feasible use. It's a 7 TPS blockchain that requires an hour to finalise transactions. It can't scale. It has very little use beyond gambling. It's not going to be used for anything. Every year there are new chains that are technologically better. Even Satoshi said in his last messages that he is moving on to another project and BTC has many shortcomings. It was a test project. Saying that BTC will be used for anything is like saying that, we would still be using 1bps modems, 1mhz processors, pascal programing language etc.
There is going to be adoption of blockchain, and it's beginning. UAE are starting their plans to put much bureaucracy and financial assets on chain. There are now billions of tradFi financial assets coming on chain. And pretty much none of it is or will be going on BTC, because it can't support that and is old tech.
People make cases for BTC as a utility, but it's not being used for that and isn't. One case is you can own your keys/money. But that's not driving any real adoption. Another is we don't know who the founder (S.N. - Sergey Nikolaevich) is. That's not driving any adoption.
Many people see the case for blockchain in the real economy, connected with billions and trillions of dollars of assets. It's probably going to take 2-3 more cycles for that to develop and for projects to find the points that will drive adoption.
BTC, ETH and other ultimately useless chains will continue to grow to the point that real adoption of blockchain and adjacent technologies take off. At the point that people need real blockchain utility, other projects will rise. Their tokens will become more valuable, as they will be required for on-chain activities. At this point no one will be paying $5 and waiting 1 hour to send BTC and no one will be paying $500 for complex operations on ETH. They will be paying pennies, less, or nothing, and probably waiting no more than a second on chains that can handle massive data throughput.