Not sure if it is michillen only problem. Mine also crack like that after 2 years. But with a lot of thread.

It is normal for XM2.
My previous XM2 had such signs and changed them after 4.5 years with plenty of thread left.
The tires have hardened and ride is very bumpy.
So I changed to a softer and quieter tires but thread wear won't be as long lasting.
But heck, I can't wear out the previous XM2 so no point to use such lasting tyres unless I'm a Grab driver.

normal...due to softer compound used on XM2

it is normal to rotate (front back) the tyres for even wear and tear.

what is swee swee?

From the picture, the front tyre wear still look OK.
I think no need to rotate.
Don't worry about the tyre, it's normal for XM2 wear to look like this.
Your tyres are just 2 years +, just in mid life.
Enjoy your trip and don't worry so much.

Is exactly like yours. Macam got blister like that.. Mine not that worn la but memang this issue macam xm2 tyre

Thanks you all for reply me ... hope next monday still can see me reply when I back ... hehehehe ( tomorrow Melaka > JB .. sunday JB > Melaka )

xm2 usually after 1-2 years have crack.but yours seems serious.