Danke black_tencate!
Dass das nichts mit initramfs zu tun hat, ist gut zu wissen.
Aber wieso sind so viele Einträge aktiv? Besonders bezogen auf POP!_OS
limelo@wee-dampfnudel:~$ efibootmgr
BootCurrent: 0002
Timeout: 2 seconds
BootOrder: 0002,0000,001C,0018,0010,0011,0012,0013,0014,0019,0001,001A,001B,001D,001E,001F
Boot0000* Windows Boot Manager HD(1,GPT,90cd9676-3130-4a55-8ec0-3ac1ed9f6fe0,0x800,0x32000)/File(\EFI\Microsoft\Boot\bootmgfw.efi)57494e444f5753000100000088000000780000004200430044004f0042004a004500430054003d007b00390064006500610038003600320063002d0035006300640064002d0034006500370030002d0061006300630031002d006600330032006200330034003400640034003700390035007d00000065000100000010000000040000007fff0400
Boot0001* Pop!_OS 22.04 LTS HD(1,GPT,a5b272df-7c15-48e6-a947-e32388837153,0x1000,0x1fefff)/File(\EFI\systemd\systemd-bootx64.efi)
Boot0002* Ubuntu HD(1,GPT,589d1156-d28c-4bcf-a75c-05003cee4eda,0x800,0x219800)/File(\EFI\ubuntu\shimx64.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 Regulatory Information FvFile(478c92a0-2622-42b7-a65d-5894169e4d24)
Boot0015 Startup Interrupt Menu FvFile(f46ee6f4-4785-43a3-923d-7f786c3c8479)
Boot0016 Rescue and Recovery FvFile(665d3f60-ad3e-4cad-8e26-db46eee9f1b5)
Boot0017 MEBx Hot Key FvFile(ac6fd56a-3d41-4efd-a1b9-870293811a28)
Boot0018* USB CD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,86701296aa5a7848b66cd49dd3ba6a55)
Boot0019* USB FDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,6ff015a28830b543a8b8641009461e49)
Boot001A* NVMe0 VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,001c199932d94c4eae9aa0b6e98eb8a400)
Boot001B* ATA HDD0 VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,91af625956449f41a7b91f4f892ab0f601)
Boot001C* USB HDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,33e821aaaf33bc4789bd419f88c50803)
Boot001D* PCI LAN VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,78a84aaf2b2afc4ea79cf5cc8f3d3803)
Boot001E Other CD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,aea2090adfde214e8b3a5e471856a35406)
Boot001F Other HDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,91af625956449f41a7b91f4f892ab0f606)
Boot0020 USBR BOOT CDROM PciRoot(0x0)/Pci(0x14,0x0)/USB(11,1)
Boot0021 USBR BOOT Floppy PciRoot(0x0)/Pci(0x14,0x0)/USB(11,0)
Boot0022 ATA HDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,91af625956449f41a7b91f4f892ab0f6)
Boot0023 ATAPI CD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,aea2090adfde214e8b3a5e471856a354)