You've received a ton of recommendations for the 14-150mm. Either they've never been whale-watching in the Salish Sea, or somehow their experience was very different from mine.
This time of the year, you'll mostly see humpback whales and Bigg's orcas. It is true that boats are required to idle 200 metres / 200 yards away from whales (400 for Southern Residents, but many tour operators voluntarily do not track them at all). And yes, the whales sometimes do come close on their own, but it's rarely going to be so close that you need a wide angle lens.
What's more likely to happen is that you spot a humpback whale, they go underwater, and resurface even further away, or at a comparable distance in another spot. And while you're waiting for the whale to come up again, you see something else that's interesting, such as a common murre or a rhinoceros auklet. You can't shoot them well with 150mm.
I actually had orcas go right under our Zodiac, but the water was too murky to see them. When they came out on the other side, 200mm+ was wide enough to frame them and have room left to crop.
But if you do get really lucky and whales come up and linger right next to your boat, you have your TG-2 for that! Yes, the IQ won't be as good as with your G85 but the odds of you needing 300mm for good photos are exponentially greater than needing 14mm.
I used a two-camera setup: 300mm Pro (with or without TC) on one, and 50-200mm SWD on the other. Since whales are unpredictable in terms of where they will surface, I had to often use the 50-200mm zoom, and 200mm was often too short ... therefore, I wish that I had a 100-400mm instead. In fact, I would recommend either of the 100-400mm's to you, because 300mm is often not enough, but the fact remains that your 100-300mm will see more use than your 14-150mm. In my numerous trips, I used the 50mm end of the 50-200mm exactly once - to photograph Race Rocks Ecological Preserve in its entirety.
I am including some of my shots as examples. These are unprocessed except for converting to JPEG and resizing to 800 px for the web (they are uncropped). Note the focal lengths.
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Semi-reformed pixel peeper.