For the record, I'm actively not looking to debate Chinese politics in the thread and asking others to refrain as well. It seems like there is no shortage of threads to endless fight about China on here recently, not looking to make another one. My goal is only to get tips on resources.
I think it is very hard to get a "detached analysis". For politic issues like this, it is inevitable that everything you read will be both incomprehensive and biased, and filled with propaganda. Probably you can find a "detached analysis" 50 years later, but not now.
That said, if you can read Chinese, I found Taiwan's monthly "mainland report" interesting to read [1]. Of course it is far from a detached analysis, but it's not very polarized (imo) and it contains interesting information.
[1] https://www.mac.gov.tw/cn/News.aspx?n=78702647C7A5B61B&sms=2...