I have an Intel MBP from that era. It’s showing its age, but still works well enough.

If I was going to complain about the performance of an 7-8 year old laptop, I wouldn’t do it on a tech site for sure.

The modern MacBook Air is the best deal in laptops today and will outperform your 2018 MB.

It's also not insanely expensive.

This Intel is my secondary laptop - but give it any kind of non-cricial task and the fan is on max and its practically unusable. I have M3 Max now.