Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop

Java Jive <[email protected]>
Newsgroups alt.os.linux,uk.comp.os.linux,alt.comp.microsoft.windows,alt.comp.os.windows-11
Organization A noiseless patient Spider
Message-ID <[email protected]>
As per subject, as I now have on the same PC some OSs  -  Ubuntu24, 
Windows7/10  -  installed on an MBR disk and Windows 11 installed on a 
GPT/UEFI disk, I'd like if possible to find a way of booting any of 
them, and MBR/GPT USB sticks, without constantly having to change the 
BIOS settings on the PC.

Research into whether this is possible seems to produce mixed results, 
mostly not, but a few suggesting it's possible, but I haven't yet found 
anything with clear and understandable instructions on how to achieve it.

My own gut feeling is that it should be possible, but, while I have a 
good understanding of how a PC boots an MBR disk, I have less 
understanding how one boots a GPT/UEFI disk.

Has anyone here been able to achieve this?  Does anyone know of good 
reliable sources of information about this?

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