I agree that garden power tools are really time-consuming.
Earlier I spent all weekends on getting rid of weeds or to water my plants.
Now I have irrigation system for watering and trimmer for weeds.
I don’t understand too much in that type of tools, but there is a lot of information in Internet!
For instance, here you can find a useful comparison of trimmer lines. https://www.backyardstyle.com/best-trimmer-line/