Yes there are a lot for sale, for example 46 Emiras on Autotrader in UK, compared to 22 used Evoras.
Is this an indicator that a lot of people are disappointed? Not necessarily, the market for expensive sportscars (often second cars) has contracted a lot over the last 6 months due to pressures of rising cost of living and finance rates.
A percentage were bought by flippers trying to make a quick turn and now baling out (I've tracked a couple of examples unsold for 6 months that have gone from 15k over list initially to 10k under list now). Plus Lotus have put several cancelled orders onto the market via dealers and direct.
Yes, some are people disappointed with the car or the initial teething issues, but I don't think that's the primary factor.
There are also 73 McLaren 570s and 79 2022-23 Caymans listed too, so it's not just a Lotus problem.