Shutter count is like the mileage on your car. It can give you a rough idea of how hard a camera has been used and if it's getting close to the end of it's expected life.
HOWEVER, just like car mileage, you have to take shutter count with a grain of salt. For example, a camera that's primarily been used to shoot video might have very low shutter count, but a lot of time on the components. If you shoot a 15 minute video there is a single shutter actuation, but 15 minutes of continuous power applied to the sensor, processor, and all components of the camera. If, on the other hand, the camera were only used for still photographs that on average were shot at 1/60 shutter speed, it would take 54,000 shots to accumulate 15 minutes of time on the same components. Of course, that would mean more wear and tear on the mechanical components of the camera, but far less on the electronic components.
I don't have an 80D so can't say for certain what works to get shutter count with it, but it must be possible because MPB.com advertises the shutter count on all the used 80D they sell:
https://www.mpb.com/en-us/product/canon-eos-80d They do this with many of the cameras they list on their site. Maybe email them and ask what they use to get the info from the cameras?
Or just try:
https://www.eosmsg.com/ad/index_en.htm?1https://www.camerashuttercount.com/https://www.freeshuttercount.com/index.phpShoot a JPEG, download it and open it in Photoshop, then select File > File Info > Raw Data tab. This might work in some other image processing software. It will not work with a converted RAW file. It must be a JPEG shot in-camera, not converted from RAW.
https://iowin.net/en/eosinfo-en/https://sourceforge.net/projects/canon-eos-digital-info/In fact,
https://www.canoncameranews-capetown.info/2017/02/canon-eos-shutter-actuation-count.html lists sixteen different methods, including most of the above, as well as some for Mac and some that aren't free.
Once you have the shutter count.... what does it mean?
http://www.olegkikin.com/shutterlife/sitemap.php compiles some data regarding shutter life spans for most interchangeable lens cameras. This is a limited, informal survey... purely voluntary and in many cases based upon a relatively small pool of respondents. For example, there have been very few reports by 80D owners, so the data gathered on them is not terribly useful. At first glance it appears they have a high failure rate... much shorter life spans than most Canon DSLRs. But when there are so few individual reports making up a data set, even one or two bad ones will skew the results a lot. Compare 80D data (
http://www.olegkikin.com/shutterlife/canon_eos_80d.htm) with another Canon model where far more reports have been submitted, such as 5D Mark II (
http://www.olegkikin.com/shutterlife/canon_eos5dmkii.htm).
What did Canon themselves say about any particular camera model's expected life span? This site
https://shuttercheck.app/data/canon/ appears to have pretty accurate and up-to-date info about Canon's ratings. I don't know that their survey data is all that helpful, though. (This same site offers a shutter count app for Macs.) Another source of Canon predictions is
http://www.shutteractuations.com/canon-eos-camera-shutter-lifetime/ But that site doesn't appear to have been updated since 2014, so doesn't include models introduced after that (no info on 80D). I'm also not entirely sure all the info there is accurate, since it shows the 70D rated to do 150,000 clicks. AFAIK, most xxD cameras have been rated to do 100,000, until the 90D was increased to 120,000. However, I have seen it claimed elsewhere that the 70D has an unusually high spec shutter.