Intermittent fasting users will experience fasting strength training, which is no problem. But the specific effect varies from person to person. Some people train on an empty stomach, while others are different. But the point is, if you train on an empty stomach, you'd better drink 10g BCAA before training.

I personally train on an empty stomach for a long time, but intermittent fasting is the first meal of the day. Exercise before eating, in other words, exercise after fasting 16 hours, which has a good effect for me.

I suggest you try it for a while and see how you feel before you decide, but then again, it doesn't matter when you choose to do strength training, as long as it conforms to your daily life plan and you don't feel uncomfortable ~ it doesn't matter when you practice, there is no "best" training time.