I use the same Mac bought in 2011.
Trouble free.
2009 day after day after day and usually never turn it off. I maybe reboot it once a month. It has been used and abused. Thrown in a non padded briefcase, strapped in, put in the cargo hold of a helicopter many times etc.
The hard drive is starting to make some noise so I am in the process of replacing it with an SSD one.
I find Parallels klunky and am thankful I don’t have to use it much. Not using it much is probably why I have problems with it.
I was forced to buy a PC about a year ago because my bank uses an IBM product called Trusteer that was not Mac OS compatible. That was a disaster. Windows 10 is a mess. The thing crashed, I got the bank to make arrangements for the Mac, put the PC in the closet and forgot about it.