I've become a big proponent of incorporating more research into my work over the last year and a half or so. Prior to that... I just didn't do that much of it honestly. I just did the whole "draw from imagination" thing like 90% of the time.
For some things it worked out okay. Like I stuck to drawing characters mostly in casual modern clothes, and I know what a T-Shirt looks like, for example. And even though they didn't look great I could approximate hair styles well enough, & Etc. But some things, like my backgrounds for example, often felt somewhat (or REALLY) lacking.
It was only after spending a few months on my first Tapas comic that I had the captain obvious "wow, it'll be easier to draw something good if I know what it's supposed to look like!" moment. The earliest compare/contrast moment in said comic are these two panels which are 13 pages apart. Natural landscapes have always been a weak point of mine but the first one is just offensively bad and lame xD I spent some time before it came up again looking up prairie photos on google for inspiration and was able to come up with something at least a little better for the next time:

Recently though I've been trying to use a lot more research and reference in more and more aspects of the comic-making process. My next story is going to take place in a modern-day school setting, so in addition to looking up examples of classrooms and etc., I've also spent time while working on each new character looking up hairstyles, clothing/fashion, etc. to nail those aspects down a little better as well.
Most recently I had a nagging feeling that something about the plot/outline/characterization was lacking, so I've been binging writing advice videos & articles and have learned a lot from those as well that has helped my drafting experience go more smoothly.
So... yeah, I'm a fan of research
I don't think you necessarily have to go bonkers deep diving into every little thing (unless you want to, which can lead to some cool results too!) but a little knowledge & insight goes a long ways.