Roland Guelle

Touchscreen or Touchpad? I never had this issue.

Have you tried https://github.com/rolandguelle/razer-blade-stealth-linux#suspend-loop Is your 18.04 a fresh install or an update?

Could you check the logfiles when the system hangs? Could you try to disable WIFI before suspend?

Have you tried this fix? https://github.com/rolandguelle/razer-blade-stealth-linux/blob/master/ubuntu-21-04.md#caps-lock-crash