It's a nice to have feature; in your use case, probably not as necessary. I specifically bought a 2-in-1 because I wanted that feature; however, I rarely use it in tablet mode. I do use it a bit in tent mode when traveling on planes. If you consume a lot of media on your laptop, then a touchscreen is nice--you touch the screen to pause, just like your phone--so you don't have to fiddle with the keyboard/touchpad.
The features you should be looking for in your next laptop would be...
* 8th generation Intel processor
* 8GB RAM (minimum)
* Solid-state hard drive (128GB is probably sufficient depending on how much you rely on cloud storage, but 256GB is obviously better)
* 1080p screen (minimum)