Vueling, Wizz Air, & Ryan Air at BCN Terminal - Jetbridge or tarmac boarding

I am planning to take my mom, 78 yr, to BCN and maybe tag along another city, Prague or Krakow. I am leniently toward Krakow but logistic planning doesn't look that ideal.

Mostly low cost airlines serve nonstop flight to both Prague and Krakow.

Wizz Air and Ryan and Vueling fly from BCN to Prague.

Ryan and Wizz fly from BCN to Krakow. LOT has one nonstop flight to KRK but a very late arrival, 11 PM, which is too late. So if I want some decent time slot, my choices are limit to the low cost airlines.

Just want to ask anyone with previous experience if it is true that that Ryanair uses jetbridges in Barcelona El Pra, read that on some forum.

Or almost always these low cost airlines use stairs at the tarmac for boarding. As my mom is old, beside the tide seat, I don't want to stress her out even more with climbing up and down the stairs and taking a bus to board the plane.

Thanks in advance. Any tips is appreciated.