Sortilege, as an ex community nurse of many years I can assure you that you couldn't be more wrong.
In the area i live my experience, and I'm assuming you mean Gp surgery nurses as in Prsctice nurses, they are often ( not always but its very common) dumped on massively by gps and not paid incrementally for years of work, despite increasing work load or upskilling.
Community nurses have increasingly complex patients to deal with that have long term health complaints and significant needs They have to cope with the demands of the family and the patient. Hospital discharges, often crudely done, dealing with unhelpful or unsupportive Gps who expect them to get in the queue along with everyone else to assist with their patients. Pretty much every other discipline that says it isn't their job to do x y or z for some spurious reason it gets delegated to nurses.
It is also worth bearing in mind that the 'unsuccessful' hospital patient ( and by that I mean not fixable or very difficult to fix patient) will be discharged to the community be they non compliant, deteriorating, or have significant drug or alcohol issues. The homes too can be the least conducive environments to health and well being possible, so nurses have to just do their best. There is also the threat of the violent patient who as a lone worker you can be very vulnerable to especially as a woman.
On top of the paperwork, training, meetings, equipment management and red tape there is poor back up and support from management who feel it is still apprpriate to rapidly increase demands, but less staff, hence more burnout and sickness.
Add to that paying for your petrol to do your job once you've reached your yearly mileage 'allowance' !!! Especially now.
I know nurses who went back to the hospital after trialling community because they thought it would be easier...its definitely not.