Radios are best viewed as a completc system instead of just one component, they work best when each component is balanced to the next.
Not long ago the 2-way was your only link for on lake communications to friends and NPS. Today with cellular coverages increasing the radios are no longer your only option but are a crucial life saving tool especially when needing a lot of help quick, looking for a lost dog, boat accident, or even a call in the blind for an epipen or a cup of sugar, not to mention listening durind a wind period.
There are other threads on this but as a review your radio system includes antenna height, antenna, cables and radio. For best range try to mount your antenna as high as possible, or use the longest antenna possible on a low boat. Read up on the reviews for help picking an antenna, for me I would look at the Shakespeare’s Galaxy xp 5225. Use the shortest cable possible between the radio and the antenna and make sure this cable is shielded and that the connector has been properly attached. For a radio there is no reason to be beyond a Standard Horizon GX 1700. Make sure your power wires are not undersized.
The 8 foot galaxy will not be happy in choppy water on a small boat. The quick connectors you mention are a visual enhancement first, which is great if looks are important to you, but it is still a splice. Consider reaching out to a marine radio store in Seattle or Florida, the will know which antenna will have the longest throw, understanding Powell will be shorter.