Apologies for the late reply, and I appreciate the help.
$ sudo lsblk --fs
NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINT
nvme0n1
│
├─nvme0n1p1
│ vfat FAT32 SYSTEM
│ 0033-805F 187.4M 27% /boot/efi
├─nvme0n1p2
│
├─nvme0n1p3
│ ntfs Windows
│ 01D23C0E00C1B830 222.5G 56% /run/media
├─nvme0n1p4
│ ntfs WinRE_DRV
│ 9EA036A1A0368037
└─nvme0n1p5
crypto 1 bbddb61a-26b5-488a-8b6b-03bf14a43c42
└─luks-bbddb61a-26b5-488a-8b6b-03bf14a43c42
ext4 1.0 862a3f76-8d2b-495f-a1a0-dc2c5f621de2 409.7G 3%
$ efibootmgr -v
BootCurrent: 0002
Timeout: 2 seconds
BootOrder: 0002,0001,0018,001B,0017,0000,0019,001A,001C
Boot0000* Windows Boot Manager HD(1,GPT,bdbb84fc-7e1c-400e-9a55-aab2481672d7,0x800,0x82000)/File(\EFI\Microsoft\Boot\bootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...0................
Boot0001* Linux HD(1,GPT,bdbb84fc-7e1c-400e-9a55-aab2481672d7,0x800,0x82000)/File(\EFI\Linux\grubx64.efi)
Boot0002* Manjaro HD(1,GPT,bdbb84fc-7e1c-400e-9a55-aab2481672d7,0x800,0x82000)/File(\EFI\Manjaro\grubx64.efi)
Boot0010 Setup FvFile(721c8b66-426c-4e86-8e99-3457c46ab0b9)
Boot0011 Boot Menu FvFile(126a762d-5758-4fca-8531-201a7f57f850)
Boot0012 Diagnostic Splash Screen FvFile(a7d8d9a6-6ab0-4aeb-ad9d-163e59a7a380)
Boot0013 Lenovo Diagnostics FvFile(3f7e615b-0d45-4f80-88dc-26b234958560)
Boot0014 Startup Interrupt Menu FvFile(f46ee6f4-4785-43a3-923d-7f786c3c8479)
Boot0015 Rescue and Recovery FvFile(665d3f60-ad3e-4cad-8e26-db46eee9f1b5)
Boot0016 MEBx Hot Key FvFile(ac6fd56a-3d41-4efd-a1b9-870293811a28)
Boot0017* USB CD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,86701296aa5a7848b66cd49dd3ba6a55)
Boot0018* USB FDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,6ff015a28830b543a8b8641009461e49)
Boot0019* NVMe0 VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,001c199932d94c4eae9aa0b6e98eb8a400)
Boot001A* ATA HDD0 VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,91af625956449f41a7b91f4f892ab0f600)
Boot001B* USB HDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,33e821aaaf33bc4789bd419f88c50803)
Boot001C* PCI LAN VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,78a84aaf2b2afc4ea79cf5cc8f3d3803)
Boot001D* IDER BOOT CDROM PciRoot(0x0)/Pci(0x16,0x2)/Ata(0,1,0)
Boot001E* IDER BOOT Floppy PciRoot(0x0)/Pci(0x16,0x2)/Ata(0,0,0)
Boot001F* ATA HDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,91af625956449f41a7b91f4f892ab0f6)
Boot0020* ATAPI CD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,aea2090adfde214e8b3a5e471856a354)
Also, a minor irritant: the new sequence is reboot -> Lenovo splash screen (post-bios?) -> request for LUKS password -> grub -> Manjaro -. >>>Lenovo splash screen again<<< -> login prompt. Previously, I just got the one splash screen after reboot, then grub, then straight into whatever O/S I chose.
Thanks again…