Ohhhh boy rant time.
Im in a identical situation and have been a opiate user for a decade now and I cant lie, I did try the fent patches but was over the top on the cautions and still felt like i was playing with death, despite my past heavy use phase (I usto eat 80-120mg oxy pharma with street grade xanax, pharma Valiums, Pregablins, Gabapentins, Codeine, Dihydrocodeine, bro the list goes on... sometimes all at once. *thankfully never fatally od'd) these days i just fend off pain and enjoy what may come. As for the fentanyl if you can hold off the urge to try and feel it. I suggest highly that you do that its only going to push you way past your needed tolerance level way to early. It is like putting a heroin dosage in your hand all ready just hit go, are you realistically really going to be able to say no. You may never gain the addiction like I did with harder opiates, and my oxy use has never been consequential (I'm sure there's health ones that wont show for some time). The whole point is its in your hands till it isnt. If you can avoid it don't do either sell it and go get some good weed, before you mix addictions and wish you could go back, knowing if you were given the chance you wouldn't go back because what came with can feel so
I assume if you were an addict you'd be holding onto both or mixing and or using them interchangeably would be more so on your mind based on how you asked the question or the fact your asking at all, I'm gonna assume your current opiate naive even if not previously so. If you can hold off don't touch either and fucking run. The hardest demon to escape of all is yourself, and lose yourself with it and you'll soon become that.
Or who knows maybe your fine and are better off for the experience... sadly when the strength is fentanyl i doubt there's much to better you there.
Should you be enough of a user for a personal index to matter to you, it is more often than not said that Oxy is the OG and in i believe the old Eukodal patents is described as the most intense euphoria or something along those lines. Some have also said buprenorphine gets them to a heaven some heroin users wont describe.
As for mass reports. Fentanyl is far less euphoric or enjoyable as a recreational high than both heroin and oxycodone, I was always and always will prefer to nod but privately end of the day kind of thing. Yet i was and am able to stop constant oxycodone usage without much if any withdrawal up to 30-40mg a day. Any level of fentanyl has me feeling pretty shit after the first use period. I know if I went a single push past that Id be almost certainly feeling some withdrawal.
Never IV'd opiates, Rarely ever Smoked any, snorted a lot in my life but rarely do I with opiates these days or did I much other than 1 phase. Oral consumptions pretty much what I prefer and try keep snorting anything to a rare occasion.
Best of luck!