I've had a rack on every bike I've owned since the late 1970's. A rack or combination of front and rear racks adds great utility to any bicycle.
In all that time, I've never heard of or seen, a "quick release rack". Know this: if your rack is not securely bolted to your frame, using nylock nuts or loctited bolts into a factory frame mounted threaded boss, you can bet the farm a loosely fitted rack made for fast removal is going to fast-remove itself at a most inopportune time for you out on the road or trail......
Leave the rack on and invest in some good pannier or office bags designed to carry what you want. And when you arrive at your destination, you remove the entire bag and bring it with you for security's sake. Here are a few examples of what I currently have (not counting the super swanky Brooks pannier bags I have for my Trek Soho, currently off-camera):
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My Specialized Fatboy. Analog bike. Surly Nice rear racks mounted on both the front and rear. The rear bags are Ortlieb's Office bag, size large with the QL2 quick release mounting system. The color is their long discontinued Hazel Brown. Kinda wish they'd bring it back. These Ortliebs are still available, but I believe only in a solid black color. Pricey they are, but fully waterproof and these bags are sized to carry laptops.
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Haibike Full FatSix. Old Man Mountain Fat Sherpa front and rear racks. Ortlieb Office Bags, size Large, discontinued black and gray color. QL2 quick release bag mounting system. Completely waterproof and sized to carry laptops or overnight camping trips. I'm an Ortlieb fanboy and have various bags for a front and rear rack mounting combo. Again, the priciest bags on the market, but the best, imo forged through personal experience. Again, the racks are mounted permanently on the bike and the bags are removed for security and utility.