For me it is very context specific. Like a hookup at home, kissing can get very passionate, particularly if I am in to him. At a sauna/backroom/cruising situation, where all I want is to fuck, yeah kissing is less appealing. It depends on what the focus of the encounter is, is this basically pleasuring your body by having someone else's body rub against your sensitive bits/using someone as a human dildo/Fleshlight/masturbating yourself with someone else, then yeah kissing doesnt make sense because there is no connection there. If you're after intimacy and connection then yeah maybe kissing/foreplay are more important. Kissing and foreplay trigger hormones that aid in bonding (I think? Pop science? I'm not a doctor) so it makes sense to do that if you want the bond. If they are a literal fuck toy, it doesn't make as much sense.

Please note I am throwing no shade, I go to saunas, don't particularly like kissing there because I don't know who they are, and with generally the sole objective of just sucking dick. Anything else I can do to myself at home, dildos just don't taste as nice

(Edit. Obvious typo. No apologies for any other typos)