In the 70s I helped with a large layout decision by trial use.
A case of the "top" 3 brands. GG got chosen for ease in availability, bending & looks on the Phantom Rail. I cant remember who for sure, but the "runner up" had closer too scale ties, but was too bright brown, too "clean" looking. Back then, using "the Kings of flex" meant the crank rail bender wasn't needed any more either.
I assume they haven't changed a winner too a loser suddenly after generations. So its "the easy choice" for me till I hear otherwise about them.
I thought Anyrail had a flex track. And maybe a "fill the gap" option.
While lowering my head & charging like William is my norm. When I was building he last one, in Super O, O, & 0-27 all on one layout. I found Anyrail useful to have for making a list of how much more of each track type I needed to buy.
Then I cut some to fit
If you live where one person is working days, another midnights, another afternoons, It might limit your layout time, but your thinking about it may still need an outlet.