Not really. It would work, I suppose, but many other, easier-cheaper ways to do that. It would not fit inside a 2x4 stud wall, you'd still need a piece of flex pipe to connect it to the dryer vent tube on the dryer,,, ,Use something else,, like DRYER VENT HOSE.
Click or copy and paste the link, on your browser https://www.homedepot.com/s/fittings%2520for%25204%2520inch%2520pvc%2520drain%2520pipe?NCNI-5
No. The two would never be used together.
Kinda. This is genrally used for 'digested' version of 'food', however.
Yes, they Cut it in store. They charged me for the 10” but I only needed 6”.
Mine is used for below ground surface water irrigation. About 1 to two feet down. But mine is driven over by vehicles as well.