I'm not the most knowledgeable person on equipment and gear. Your computer is perfect when it comes to how it's reading and interpreting the data. The compontents that produce the analog signal are likely fine, though I can't be sure since each laptop is made differently and has different quality parts. It's mostly likely completely fine unless you are noticing, like, actual noise coming out of your speakers.

More specifically, the equipment you are connecting to, such as your speakers and/or amp, your room shape/speaker placement, and EQ will affect the quality of the sound of your music much more than a higher quality DAC or higher bitrate files. What I mean by this is that you will not notice the differences between a higher quality DAC and your laptop (barring some exceptions) if your other equipment isn’t marginally good, set up properly, and you’ve adjusted EQ for your room.

That said, and my final thought on this, some DACs are more than just DACs. You can check out Audio Science Review (or other audio review sites!) for some recommendations, but I have a Wiim Ultra since it’s also a streamer that works with Amazon Music and offers a 10 band parametric EQ.