I have a degree in audio engineering and have worked in recording studios and live sound reinforcement for decades. Sorry if “do your own Google research” doesn’t cut it for me.

It is a fact, which you can Google if you’d like, that digital audio (CD) is an approximation of an analog source. The quality of that approximation is most often determined and measured in bit rate and sample rate. The higher the bit and sample rate the higher quality and closer it gets to its analog source which has no such limitation. By that measure, vinyl can be higher quality. It is a more exact representation of the source.

It is also a fact, again goggleable, that CD’s dynamic range potential is higher than vinyl. In that measure, CDs can be higher quality.

Which is why I asked what measure you were using to make your case. Unfortunately, you can’t answer with anything but “google it”.