And because of the delay in payment I was thinking that not everything we see can be purchased with bitcoin, is it true?
It is true that paying with bitcoin is often not the most convenient thing to do, at least not for now. Keep in mind that Bitcoin was created only 14 years ago which is a very short amount of time in the grand scheme of things so it will take some time to properly implement low cast and fast bitcoin transfers.
I simply don't stress mytself too much about situtaion where bitcoin is not the most convenient and instead focos on those where I can sp[end my bitcoin easily, like for examplt paying for IPTV, VPN, gambling etc.