What about the most important logs? armbianmonitor -u

chromium.desktop[3120]: *** stack smashing detected ***: terminated Nov 26 06:42:03 chromium.desktop[2990]: [2990:2990:1126/064203.098026:ERROR:gpu_process_host.cc(982)] GPU process exited unexpectedly: exit_code=6 Nov 26 06:42:03 chromium.desktop[3121]: *** stack smashing detected ***: terminated Nov 26 06:42:03 chromium.desktop[3122]: *** stack smashing detected ***: terminated Nov 26 06:42:03 chromium.desktop[2990]: [2990:2990:1126/064203.942006:ERROR:gpu_process_host.cc(982)] GPU process exited unexpectedly: exit_code=6 Nov 26 06:42:03 chromium.desktop[3125]: *** stack smashing detected ***: terminated Nov 26 06:42:04 chromium.desktop[3126]: *** stack smashing detected ***: terminated Nov 26 06:42:04 chromium.desktop[2990]: [2990:2990:1126/064204.018856:ERROR:gpu_process_host.cc(982)] GPU process exited unexpectedly: exit_code=6 Nov 26 06:42:04 chromium.desktop[3127]: *** stack smashing detected ***: terminated Nov 26 06:42:04 chromium.desktop[2990]: [2990:2990:1126/064204.055480:ERROR:object_proxy.cc(576)] Failed to call method: org.freedesktop.ScreenSaver.GetActive: object_path= /org/freedesktop/ScreenSaver: org.freedesktop.DBus.Error.NotSupported: This method is not implemented Nov 26 06:42:04 chromium.desktop[3128]: *** stack smashing detected ***: terminated Nov 26 06:42:04 chromium.desktop[2990]: [2990:2990:1126/064204.088517:ERROR:gpu_process_host.cc(982)] GPU process exited unexpectedly: exit_code=6 Nov 26 06:42:04 chromium.desktop[3129]: *** stack smashing detected ***: terminated Nov 26 06:42:04 chromium.desktop[3130]: *** stack smashing detected ***: terminated Nov 26 06:42:04 chromium.desktop[2990]: [2990:2990:1126/064204.118118:ERROR:gpu_process_host.cc(982)] GPU process exited unexpectedly: exit_code=6 Nov 26 06:42:04 chromium.desktop[3131]: *** stack smashing detected ***: terminated Nov 26 06:42:04 chromium.desktop[2990]: [2990:2990:1126/064204.133910:ERROR:gpu_process_host.cc(982)] GPU process exited unexpectedly: exit_code=6 Nov 26 06:42:04 chromium.desktop[3132]: *** stack smashing detected ***: terminated Nov 26 06:42:04 chromium.desktop[3133]: *** stack smashing detected ***: terminated Nov 26 06:42:04 chromium.desktop[2990]: [2990:3077:1126/064204.145130:ERROR:zygote_host_impl_linux.cc(279)] Failed to adjust OOM score of renderer with pid 3133: Permission denied (13) Nov 26 06:42:04 chromium.desktop[2990]: [2990:2990:1126/064204.165725:ERROR:gpu_process_host.cc(982)] GPU process exited unexpectedly: exit_code=6 Nov 26 06:42:04 chromium.desktop[3134]: *** stack smashing detected ***: terminated Nov 26 06:42:04 chromium.desktop[3135]: *** stack smashing detected ***: terminated Nov 26 06:42:04 chromium.desktop[2990]: [2990:2990:1126/064204.184185:ERROR:gpu_process_host.cc(982)] GPU process exited unexpectedly: exit_code=6 Nov 26 06:42:04 chromium.desktop[3136]: *** stack smashing detected ***: terminated Nov 26 06:42:04 chromium.desktop[3137]: *** stack smashing detected ***: terminated Nov 26 06:42:04 chromium.desktop[2990]: [2990:2990:1126/064204.199662:ERROR:gpu_process_host.cc(982)] GPU process exited unexpectedly: exit_code=6 Nov 26 06:42:04 chromium.desktop[2990]: [2990:2990:1126/064204.199792:FATAL:gpu_data_manager_impl_private.cc(423)] GPU process isn't usable. Goodbye. Nov 26 06:42:04 chromium.desktop[3009]: [1126/064204.240108:ERROR:elf_dynamic_array_reader.h(64)] tag not found Nov 26 06:42:04 systemd[1900]: app-gnome-chromium-2990.scope: Consumed 4.237s CPU time.

Try to update to most recent, try older versions ... If you use EDGE kernels, then you are at the edge and crashing is expected. EDGE is meant for experimenting, trying new HW features. But like @Werner already asked, we need to see logs. Without is not possible to help. For this hardware its recommended to use this image https://dl.armbian.com/khadas-edge2/Noble_vendor_gnome-kisak with preinstalled browser. Anything else is calling for troubles. BTW. This super complex application is developed by https://www.chromium.org/chromium-projects/ and if anyone can debug, are they.

Simple: sudo apt install google-chrome-stable But. Google does not provide Chrome for hardware you have and Armbian nor Ubuntu can't help.

unfortunately i dont see the "Boot from MTD flash" option when using that command on Orange Pi 5 Pro is this because the Pro dont have SPI flash ?