@TaaviE finally i managed to do this. Long story short: as long as Companion pairing was enabled i could only once connect my Pebble OG (didn’t manage to catch log of that). Once i disabled CP and ALSO disabled the BLE scanning, it seemingly worked on the first go, i tried a two times.
See attached log, i have copy/pasted few logs in there (i entered new lines in between, see datestamps, just in case some of the lines are duplicated. This is because i get no logs on the phone (logging is enabled) so i used AStudio)... so maybe go from the end as it is quite long.