Review of Ubuntu MATE and Ubuntu Budgie 18.04 LTS

 PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND     
4028 chrism    20   0 3303708 1.313g 131660 S   0.3  2.1  12:05.15 thunderbird 

Now it’s true that I have an obscene amount of mail. But if I don’t restart the thing every so often, it just grows til all my 64G of RAM is consumed. It’s just your garden variety memory leak.