You don't feel the CGM filament once it's inserted unless you catch it on something. You can also put a patch over it to make it less likely to catch/pull.

My experience is that the Libre3 is not nearly as accurate as the finger stick as has been mentioned. Also if you have an older phone, the app won't work and you have to try and get a separate reader. I had an older Libre years ago and thought it was better.

For people who don't believe certain foods are bad for their blood sugars or won't finger stick or need overnight readings, the CGM's can be helpful, I think. Even if the accuracy is not as precise, they do give you the trend line.