The default is and has always been that employees will come into the office, I don't know why you'd expect this to be specifically disclosed. If it doesn't say remote it's almost surely not remote.
After the big tech companies all did their RTO last year I'm really not sure how remote work could be seen as the default. I recognize that it happens - there was a whole drama cycle last month from Amazon employees who seem to have believed the RTO was optional - but it's not a wise job searching strategy to expect remote opportunities from a company that doesn't advertise them.