AWS's m5.large, GCP's n2-standard-2, and Azure's D2 all should be sufficient to run a single Lighthouse run at a time (~$0.10/hour for these instance types, ~30s/test, ~$0.0008/Lighthouse report). While some environments that don't meet the requirements above will still be able to run Lighthouse and the non-performance results will still be usable, we'd advise against it and won't be able to support those environments should any bugs arise. Remember, running on inconsistent hardware will lead to inconsistent results!
DO NOT collect multiple Lighthouse reports at the same time on the same machine. Concurrent runs can skew performance results due to resource contention. When it comes to Lighthouse runs, scaling horizontally is better than scaling vertically (i.e. run with 4 n2-standard-2 instead of 1 n2-standard-8).
так они же пишут, что если ресурсы будут ниже какого-то порога, то начнут вылезать баги, а выше — это влияет только на скорость выполнения самого теста в той или иной степени