Google introduced a new kind of Recorder app with the Pixel 4 series. It is not merely capable of capturing audio, but of transcribing it in real time and making the resulting text searchable with the help of AI. A Mountain View representative has confirmed that it is coming to older phones of the same line soon.
https://www.notebookcheck.net/Google-s-advanced-Recorder-facility-is-coming-to-older-Pixel-devices.441195.0.html