How to access Dual Boot?

Loaded Mint 21 and then current Endeavouros on split partition.

Years ago I remember seeing the option for which OS you want to run pop up on power up. Now days I dont see that?

So what should i be seeing as a login option now in my case?

Could only find windows related dual shearing in topics.

Do i need to tweak the install arrangement? How?

thanks for help

What bootloader are you using?

Are you using grub from Mint or Endeavour?

Did you enable os-prober?

Or are you using systemd boot?

This probably means, Mint was installed with Grub, and EnOS with systemd-boot?
EnOS is detected. - But NOT Mint…

@Nzlinuxer let us know if that is the case, please. :v: