I have used Bonti rim strips on various wheels including Bontis. I have had varying ease/difficulty seating the tyres – mostly OK with a compressor and a good resounding ping as the bead goes home.
No burping and good resistance as you try to break the bead when changing tyres.
My latest wheels are Arch EX. Yellow tape and a tubeless valve.
Only had one set of tyres on them so far – Bonti XR4 & MudX – but they went up with a track pump SO easily and seated themselves. Very light.
I would say that the amount of sealant is down to the type you use and the porosity of the tyres you have. Not the rim.
I didn’t get on with the Bonti stuff and use Joe’s.