CMOS process scaling is already on its last legs. There are various options: more efficient code (ROFL), stacking of various sorts, new material/techs, co-processing (GPU, FPGA, quantum for certain classes of problems), etc.

But there's certainly a school of thought that CMOS process scaling was the big engine of tech over the past few decades and there may be nothing that comes close to replacing it to anything like the same degree.

There are challenges but work is on the way, transitioning to gate-all around FETS (GAA Fets) https://semiengineering.com/making-chips-at-3nm-and-beyond/

We could see a 4x boost in computer speed by scrapping all scripting languages and electron. Also the future seems to be more cores. A 64 core laptop may not be too far away.