Sorry I'm not a plumber, just an informed homeowner. I cannot suggest what you should do from my experience. However we have high water pressure in our house. I've removed all plastic plumbing parts. I do have the stainless braided faucet connections which are technically plastic, I was careful to purchased from a "premium" mfg (if there is such a thing).

We had a new furnace installed last March. The plumber was a very knowledgeable guy who was recommend by a friend who is a maintenance leader in a mfg company. This guy has done a lot of work for them and it has always been to notch. When asked about sharkbite he will only use them for temporary installations.

While not the same exactly, I personally look at sharkbites as similar to the aluminum wire used in homes in the 1970's. Now aluminum wire does not meet code except for services.

Having said that I would put it on my list of do do things.