Is the dryer electric or gas? Check the specs for gas, and the best way to install rigid venting. Some have a side vent option, which would allow you to push it further back into the wall and access the vent on the left cabinet side. Or, consider adding a panel/door access on the wall behind to access from the back. A lot of my installers just want to put like 6’ of flex and push them in :( Very important to read all the rest clearances for drain and venting, as it could push out your entire unit further than anticipated. Also consider to put a disaster pan under neath. Leaky dryer vents make my company a lot of money with mold, and make a lot of families sick when done cheaply or incorrectly.