All my devices are are on the September Play Services update.
Zero issues in my device rooted with KSU.
In one device rooted with MD (Zygisk disabled) I could get HDFC to work in Island but had to use HMA to get it to work in the Mainland. No such luck in case of iMobile. However at least I could get it to work in the Work Profile although I had to disable a bunch of modules including LSPosed and Riru.
In my lone unrooted device (that too running MIUI ) no crashes of any kind so far.
Embarrassingly I couldn't get Red Rail app to work in the Mainland, in case of MD, no matter what I tried. Had to use it in Island.
Edit: @some1anywhere Barely a day later and problems for rooted users! Again no issues in case of KSU. I am not aware of any MTK device with KSU support even very recent ones whereas it's available for 7+ years old QC devices!