Whilst GPs can (and do) issue test strips, insulin, etc., in my experience, they are far behind the curve with regard to offering "newer tech" such as CGMs and insulin pumps. Most have caught up with the Libre for people with Type 1 but alternatives such as Dexcom One are rare.
The same is true with regards to changing insulin.
Just because you do not have any issues, does not mean you should not have access to these newer options to reduce the impact on lifestyle that Type 1 may have.
I am lucky to have access to a diabetes clinic at the local hospital and have always done so. I have had a couple of occasions where I have had to talk to the DSN at the GP surgery. She may know type 2 but I was not sure she was able to spell "Type 1" based on the ignorant questions she asked me. Access to someone with the title "DSN" at a GP surgery is not likely to have the knowledge or experience to provide more than basic support for someone with Type 1.
Eight years ago, I felt that my diabetes was well-managed (I never talk about "controlling" diabetes). However, my endo identified the added value I could get from a pump and I have never looked back. I am concerned that areas that follow the approach you describe would prohibit these options apart from for very proactive (demanding) patients. A GP is a General Practitioner and cannot be expected to proactively recognise the need for a change in Type 1 treatment.