Do a search on these forums and you will find hosts of reports of inaccuracies, and stories of good readings too. I've posted some myself.
There are clearly reasons and explanations why they can differ from a finger prick, loads of explanations of that here too, but the general consensus is that it's just numbers, it's the change that is important, Most people find that meters and Libre are quite close in the 4-6 range. Above and below is just OUT and you need to act. That might be confirm with a meter or not depends how you feel and get on with it. I rarely do.
Some folk have not been able to live with it and have stopped. For the time being I'm happy to live with the slight vagaries.