
FMTransceiver
Longing-Ingernot/FMTransceiver
This is an FM radio transmitter and receiver, all in one, built around an ESP32-S3, a KT0803L
KTmicroExtended
SOP-16 SMT ROHS
The KT0803L is an uncategorised made by KTmicro in a SOP-16 package with 16 pins. SOP-16 SMT ROHS.
PCBKit's library has its footprint (Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C56056219). 2 open-source boards in 2 repositories on GitHub use it.
The library has no symbol for this part yet.

Longing-Ingernot/FMTransceiver
This is an FM radio transmitter and receiver, all in one, built around an ESP32-S3, a KT0803L

Gloeidraad/AMFM-modulator-with-ESP32-module
This is an MP3 player, Web-radio player, Bluetooth player, and simple waveform generator, based on an ESP32 module. The output is connected to a simple FM/AM modulator.
Yes. the footprint Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOP-16, with 16 pins. Its footprint is drawn on this page.
JLCPCB lists it as part C56056219, with 0 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the CD4017BM(LX) by lingxingic, the DAC0800LCMX-TUDI by Tudi, the TL494-SOP-16 by DDF and the SG3525AES by GREENMICRO. Check their datasheets: a part that fits the footprint may still differ in its ratings.
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.