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Sure feels like summer out there. As such,  chose these brews for Sunday football today. I've always enjoyed the Big Wave, especially with salty snacks. First time trying the Gold Cliff though. It's favorable but smooth with just a hint of pineapple. 

On my Kona gravel bike, if I left the bike hanging vertically for a week both brakes would be completely flat. Once the bike was horizontal I could pump the brakes and they felt great. Did the bleed with pads in place and they have been perfect since.  AB is right about tapping the lines to get the bubbles to the top.

No, you might not need to bleed them.  But after a few days you may have to bleed them.  I take a small wrench and bang the tube lightly, starting at the caliper and moving up to the lever, this helps work the air bubbles up to the handle (allegedly). I also hang my bikes by the front wheel and that helps work those bubbles up to the lever. After a couple days, do a quick bleed, 5 minutes or less, and you will see if there was any air in the system. If after a couple days they are still really firm, then skip it, you don’t need to mess with it if everything feels good. 

The nice thing about Shimano brakes is the lack of DOT fluid, mineral oil rocks. Just bleed them, it's super easy and then you'll be sure.