from an old microsoft engineer "Secure boot only keeps operating system from boot into any other or from any other operating system, if you do not pay much attention to security; don’t have good anti virus and malware software, and visit potentially dangerous sites, then secure boot may not offer really help as all it protects is the boot process. It will not offer protection against many of the attacks that hit the operating system but are nothing to do with the boot process."
what i do know secure boot is really useful if you are white collar worker in corporations or government OR if you play valorant because their anti cheat system cant reach out boot status ect..
What i say if you are simple home user secure boot won't give you much advantage... opposite many home users reporting they unable to boot system bc of certificate migration. I have read even companies IT departments mass disable secure boot in workers laptops.