By now there are so many occurrences of this problem and Nintendo is still not able to squash these problems. I hope that this blog post can serve people who continue to suffer from this stupid hardware issue.
When dealing with Nintendo's bad joy cons, you should avoid it at all costs and use alternate controllers. The natural option to deal with it is by looking at the alternate joy cons around (Youtube has plenty). I've listed here the Dobe TNS-0163 as this is one of those alternative joy cons one can use.
You can also look at using specialized controller grips that will solve portable play but you'll need a separate controller when you dock the Switch.
- Hori Split Pad Pro (Daemon x Machina or Black or other recoloured versions) - This controller is amazingly good!
- Dobe TNS-19252
- Dobe TNS-18133
- Dobe TNS-19210
- Ipega-SW029 - it's a stretchable controller and since its max length is 280mm, the Nintendo Switch Lite can also use this controller.
- Ipega-9163A Tomahawk
- What I used for my Nintendo Switch Lite is the Ipega 9083 (Offline) (Take note that this is the non-upgraded version as the upgraded version Ipega 9083S removes Switch support!)