default or selected kernelversion does not have config value CONFIG_SOUND_YM3812.
Result is shown for kernelversion 6.7-rc3

Yamaha FM synthesizer (YM3812/OPL-3) support

modulename: opl3.ko

configname: CONFIG_SOUND_YM3812

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Open Sound System (DEPRECATED)
└─>OSS sound modules
└─>Yamaha FM synthesizer (YM3812/OPL-3) support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Answer Y if your card has a FM chip made by Yamaha (OPL2/OPL3/OPL4).
Answering Y is usually a safe and recommended choice, however some
cards may have software (TSR) FM emulation. Enabling FM support with
these cards may cause trouble (I don't currently know of any such
cards, however). Please read the file
<file:Documentation/sound/oss/OPL3> if your card has an OPL3 chip.

If you compile the driver into the kernel, you have to add
"opl3=<io>" to the kernel command line.

If unsure, say Y.

source code: