New firmware (with bug fixes) is available on the official website of the manufacturer - do I need to update via PC?

I have Cubot KingKong Mini 2 (Android 10 smartphone) and the new version of the firmware is available on the official website of the manufacturer: https://cubot.net/Support/id/60/cid/16.html#hh It contains "***minor bug fixes***". They also gave instructions on how to update firmware: via *PC*, using *SP Flash Tool*. My question is: does the "standard" update from *Android app settings* (System > Advanced > System update) also include the same bug-fixes? If so, then I don't have to do anything via *PC* & *SP Flash Tool*. I tried to find the answer by searching on Google, and on some sites it says that "*firmware update = Android update*" (which means that I don't have to do anything via PC?), while on others it says that it is not (which means that I would have to update firmware via PC/*SP Flash Tool*?).