Take the poll in 2026 after ACA subsides evaporate and Medicaid cuts. Highest satisfaction is for government run insurance (Medicare, Medicaid, Tricare).

https://www.nbcnews.com/politics/politics-news/poll-are-sati... ("Overall, 82% of Americans said they’re satisfied with their health care coverage, including a third who said they are very satisfied with their current coverage. The group that reported being the most satisfied were older adults, with 9 in 10 Americans over 65 years old saying they were satisfied. And 42% in that age group reported being “very satisfied.”. Roughly 9 in 10 of those who have public health insurance coverage through Medicare or Medicaid also reported being satisfied with coverage, compared to 77% of those with private health care coverage.")

https://www.kff.org/medicare/overall-satisfaction-with-medic...

https://www.citizen.org/article/public-support-for-medicare-... ("Support for Medicare-for-All continues to rise, whether in Congress, state legislatures, or among the American people. Recent polls indicate that six in ten Americans support Medicare-for-All. In addition, more than 60 percent believe that government is responsible for ensuring health coverage for all Americans. And nearly 70 percent of all voters, including battleground voters, identify health care as an important issue in upcoming elections.")

My comment with citations from six years ago showing the trend holds: https://www.hackerneue.com/item?id=22550774 (March 11th, 2020)

Americans With Government Health Plans Most Satisfied - https://news.gallup.com/poll/186527/americans-government-hea... - November 6th, 2015