FWIW: flew to Reus last week as our usual Barcelona flight was cancelled (industrial action). On deplaning we were held on the tarmac to allow a couple of hundred people from another flight get past first. Passport control swift, and then on to the Covid queue where we told to get out QR codes ready. Then we walked past a handful of Guardia Civil who weren't doing anything at all, let alone checking QR codes, and that was that.
Then a taxi to the AVE station - no public transport from an international airport to a mainline railway station a few miles away!? (Camp de Tarragona is nuts - four platforms and four through lines? It's in the middle of nowhere).
Return to Stansted from Barcelona. No trolley service, just occasional forays to collect rubbish. I enquired if I could buy anything - "oh yes, just not alcohol". "Why?". "We're on strike". So not being able to have a glass of red to go with my "bocadillo" and "tortilla" was a shame but it saved me a few quid and it was *really* nice not having the crew hawking scratch cards and duty-free.
Stansted passport control amazingly quick and then a taxi home - no trains, because, again, a strike.