I am good laptop hardware away from making the move.
HP Zbook Ultra G1a, 128GB RAM. Add SSD to taste. HP supported (Canonical OEM) Ubuntu with KDE. Works great as a daily driver with a UGreen GAN charger.
I'm on frame.work with AMD, 96GB RAM. Using it with fedora+KDE Absolutely love it
thinkpad
I can also recommend HP Zbook Ultra G1a. It's probably the closest thing to Macbooks at the moment. It has lower battery life and latest M chips are still faster but it's fast enough for me. The hardware is solid and sw support is great.