Thats a good question.
There are some significant differences. between the likes of Volvo and MG.
Geely who now own Volvo and Polestar( and incidentally the London Taxi Company) have recognised that retaining local input into the design of the cars and continuing to make them locally to their traditional markets, has ensured the local knowledge, strengths and identity have been retained. They also had a ready made dealer network established, and have a decade or more of proven products since their change of ownership. I personally think Volvo (like Saab) have always aimed their products at a more discerning buyer than the traditional British Leyland/ Ford/ Vauxhall offerings.
SIAC who own MG were more interested in the MG name, and not the manufacturing facilities or products and consequently they closed all MG plants and offices in the UK and removed everything to China. The present MG models have no DNA from the original manufacture. and are now essentially totally brand new Chinese designed and made products.
Essentially MG is as much an unknown entity as all the other new Chinese brands, lacking Uk infrastructure and history. They all need to prove they understand the the challenges of the UK car market in terms of product reliability, after sales service and costs.