I've been wondering the same. It's been years. I live in western Europe. Could be an example of evolution, insects that fly higher survive more often, or climate change, there's fewer insects about.
It used to be a big issue, now the biggest issue is bird poop and lice excretions.
Maybe this question should also request the responder's general location, because I imagine the situations vary substantially.
I've lived in California for most of my life, and we go on frequent drives between LA and SF, usually a few times a year.
In the 80's and 90's bugs would cover the front of our vehicles and the windshield would be difficult to see through even with wipers and washer fluid. We'd actually have to stop to manually scrape them off.
In the 00's and 10's we noticed that we'd get basically zero bugs on a long drive, and that sparked many conversations about California environmental law.
I just got back from a drive up the coast and I can happily say that we're back to insane numbers of bug strikes on the highway. Just north of Ventura I drove through a cloud of large bugs that hit like rocks and instantly covered almost my entire windshield. This situation has been noticably turning around since COVID, which I think is a good thing
I mean i live in a rural area (The whole state has less people than the city i grew up in, and my town has <2k people) and the bug splatter is way less than growing up in a top 10 US city as a kid in the 80s-90s.
I have some roads which would be swarming with bugs at certain times of day barely have any now. A lot of the country roads by fields just don't have the insect populations they used to around, I assume due to the massive amount of insecticides they use.
I drove through miles of a literal swarm of cicadas a few years ago and 99% of them didn't splat on the windshield. My roof rack was coated with bug guts, though.
UK here. It's just not a thing any more. I regularly drive - or am a passenger - on a ~200 mile round trip and insect strikes just don't happen.
That said, I recently drove from the North of England to the South of France. Almost as soon as we crossed the Channel we were instantly getting insects splattered on the windscreen to the point we had to refill buy some bright pink no-nonsense washer fluid at the next services. So I assume some counties are more responsible than others with their use of pesticides.
Every day, over and over and over... I have to keep actual glass cleaner in my car and spray the windshield occasionally—like at stop lights by sticking my arm out the window—because not even the "bug remover" windshield washer fluid works well enough. You need something strong like ammonia to loosen all the protein.
I am positive that the bug removal windshield washer fluid has never actually worked on bug splatters. Not even if you spritz them immediately when they happen, and even if you did you'd go through two gallons of the stuff per day. It's all marketing; I'm pretty sure they just take the regular stuff and dye it green instead of blue and charge three times more for it.
I live near a metro so its not as noticable but yeah 50 years ago you would get some. More significantly you did not need to go far (you could reach it in a day trip. say within 2 hours away) and you would have your windshield plastered. Basically out were you could see some farmland. Even in the 90's though going to school downstate you did not see much and Every so often I have trips across states and even down south and stays crystal clear. I will note besides insect decline there is a thing were more airodynamic vehicles don't get as many. The air flows around and the insects are more likely to survive. That being said just going camping and such im amazed at how few insects there are. I used to get eaten alive.
A couple of years ago, but I don't drive all that far most days. It sure seems like there are fewer and fewer. For instance, last summer, I saw fireflies for the first time in over a decade. This can't be good.
I remember it being like that decades ago - a long car trip might have required more stops to clean the windshield than to get gas. Not in a very long time though. Now I do get at least one hit per week but I don’t have to clean it even as frequently as I get car washes.
Where are you that there are still bugs (other than mosquitoes)?
Was talking about this a few weeks ago. Then we spent a week on the Gulf coast of TX, and the rental car collected a pretty good number of bugs. Not as much as when I was younger, but more than I remember seeing in a long time.
A few months ago when I still lived in Brandenburg in Germany (I had to clean my windscreen regularly). Haven't had a single one in Baden-Württemberg. I wonder if the wine growers use more pesticides.
When I lived in England my windscreen was suspiciously empty too.