I also provide a package to make the transition easier: https://github.com/sindresorhus/uint8array-extras (Feel free to copy-paste the code if you don't want another dependency)
It's insane to me that something as simple as concatenating an array needs a library, but as I've shown upthread, Uint8Arrays are way too complicated to work with.
I also provide a package to make the transition easier: https://github.com/sindresorhus/uint8array-extras (Feel free to copy-paste the code if you don't want another dependency)