I have a few. Anker are always decent. UGreen also good.
One thing I do notice is the Apple device provides data communication in System information. Serial number, firmware version, hardware version, wattage etc. from charger are all communicated. The Anker and UGreen do not show this and do not even identify their brand. I am not sure what difference this makes but I like the integration.
Also noticed USB-C hubs/docks often block all the data from Apple charger. If I connect a small USB-C dock now between Apple charger and MBA the data all reverts to a generic report and 5W less due to dock itself. Using the Apple USB-C AV breakout and all data is carried through with 6W used by the adapter.
I have AppleCare on my devices - MBA, iMac, iPhone 14 Pro Max, iPad Pro M2 12.9, Watch S8 and AirPods Pro. I feel happier charging with devices sourced from Apple as I feel confident to say if/when anything goes wrong that it was all bought from Apple along with the Apple Care so they can own and sort out the issues. On occasion when I have spoken to Apple they checked data on all chargers (I watched on remote session and they could see they were Apple chargers) and on most recent case took back my older AirPod Pro (now kept as backup) and replaced the batteries despite being 3 years old.
I need another charger, ideally dual port, and some cables. I have some UGreen and Anker. I am sorely tempted just to buy a couple of 1m Apple USB-C cables and a dual port Apple USB-C charger. I just feel more reassured that my kit is less likely to have issues. I have no empirical evidence or reason to justify this, just anecdotal opinion.