Yes, it is possible to use a monitor with a higher resolution than the recommended settings. Generally speaking, using a higher resolution than what is recommended often leads to sharper images and improved performance of many applications.
For example, if your graphics card supports a maximum resolution of 2048×1536 pixels and your monitor’s native resolution is 1920×1080, you can choose to use the higher resolution of 2048×1536 on your monitor. However, there are several things to consider first.
The first thing to consider is the size of the monitor. The larger the monitor, the more a higher resolution will be visible. For instance, on a small 15-inch monitor, the differences between 1080 and 2048 would be hard to notice. But on a bigger 24-inch monitor, the increase in detail would be much more noticeable.
If you are using a laptop or an all-in-one PC, you will likely not be able to adjust the settings beyond the native resolution. You should also be aware that some programs may not look sharp on higher resolutions, so consider if you actually need the extra resolution.
Finally, you should understand that a higher resolution may require more GPU memory and also put a strain on other components such as the CPU, and this could affect overall performance. A 1080p resolution is considered optimal for most applications; in some cases, however, a higher resolution could improve performance.