https://www.gamesradar.com/nintendo-is-working-without-stopping-on-its-next-new-console-after-switch/
There have been rumors of this since 2019, but Nintendo repeatedly denied that they were working on a new system. Ironically, the Nintendo Switch, which is a low-power portable tablet has been outselling the new ultra-powerful systems from Microsoft and Sony.
Hypothetically, if Apple were to put their new M1 chip into a portable game system, it would be remarkably powerful. The chip should be better than anything Nintendo can get their hands on. I have heard rumors that Apple might do something like this. Even their latest phones should make for a powerful game system.