Discovery Bay tends to be an inward looking fairly transient community and although not geographically far from the airport is isolated. .It was very popular with Americans who tended to stay 2 or 3 years .Many left re the pandemic and due to American policy re China have never returned. It is a strange sort of place and prices there are high. It is reasonably cheap now but seemingly only 60% of houses occupied. having said that it suits some and has good amenities and reasonable schools. Perhaps worth taking a look.
We as a family have been in HK more than 40 years and fully agree with @Hardrods comments above. Another suggestion If you don't mind the 50 minute drive and enjoy the water and boats Sai Kung is a great family option which for many years prior to 1997 when Kai Tak closed was the home for CX pilots and still is for many both active and retired. Its HKG's only 'country town',has everything and rentals are larger and cheaper than most places - I am retired now but we lived there very happily for 20+ years.
I would suggest avoiding HK Island its expensive and nothing to be gained from locating there other than for high end shopping and the fleshpots and food of Wanchai. With HKs very good, extensive (and cheap) public transport network it takes only a few minutes to get there by bus, ferry, train or car (plenty of paid parking.
If you are a single bloke or no kids the inner suburbs of Kowloon make an excellent reasonably priced (for HK) base . The further out you go the more you normally get for your dollar
Politically there are are absolutely no problems here unless you are some sort of very hard core radical. HK is what it is, has always been a colony of somewhere is a good place to live with a great expat community and infrastructure!