You can set up a software home button via Assistive Touch in the Accessibility settings. Or try Reset All Settings. This does not delete any data but does return any personalized features like WiFi passcodes, wallpapers, and accessibility settings back to defaults.

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Xs means Excess, not eXtra small

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Just a tad.

Nope, the Kaby Lake (Jan 2017) laptop i5’s were the first to offer HT support.

Today I learned that the Kaby Lake i5-7360U dual-core processor in my 2017 MacBook Pro does support hyper-threading, earlier versions of dual-core notebook i5s did not.
Conversely, the Kaby Lake quad-core i5-7400 processor in my 2017 4k iMac lacks hyperthreading.

News Explorer looks good, too.

Get iMazing, Bartender, Downie, Folx, BetterTouchTool, Forecast Bar, TouchRetouch and iStat Menus for starters.

You won’t, you know. It’s too old. Needs to be from 2012 to run Mojave. http://osxdaily.com/2018/06/05/macos-mojave-compatible-macs-list/

Something was using 12 GB of space on my MacBook Pro. Five days ago I had 125 GB of free space, it was down to 113 about ten minutes ago. It’s back at 125 GB again.
The culprit was Carbon Copy Cloner, in those five days it had made a pair of large snapshots which were saved to some deep dark hidden location in the System Library. You don’t mess about in there.
Instead you locate your startup drive in the left column in the CCC window & click on it. This reveals the snapshots in part of CCC diagonally opposite the selected drive.
You can restore the system from these snapshots OR delete them. I chose to delete the two larger snapshots, on of 11 GB created when I first backed up Mojave to CCC, the other of about 1 GB was made when I backed it up this morning.
I’m still allowing CCC to create these snapshots but now I know how to delete them if they are too big.

I’ve upgraded my 2017 iMac (Fusion drive); my 2017 MacBook Pro (SSD) & the Men’s Shed 2015 iMac (HDD). All work fine although I don’t like the look of dark mode in some apps. In Mail, for example, it’s vile. The Fusion drive & HDD iMacs now use APFS.