So,
I've spent a couple of days searching around, but have run into a lot of dead-ends and wondering if someone might point me in the right direction. I've successfully used Manjaro for a couple of years now on an Lenovo Thinkpad, and loved the experience overall. But, the time came to retire that laptop, it was old, long in the tooth, and slow.
Got a new laptop (Acer Nitro 5 with AMD 4600h CPU and Nvidia GeForce GTX graphics), Kubuntu will boot, but only in the safegraphics (nomodeset) option, however I've tried a number of ways to get the Manjaro boot USB I made to boot without any luck. I know the USB is good because I can boot the thinkpad with it just fine. While I dabble in Linux, I'm definitely not a power user.