GC installed, upgraded Mint from 20.3 to 20, now can't run/install GC, memtest86+ error

[utube punk]

Hi. First bug report & I'm new-ish to Linux so patience is appreciated.

I have a Dell laptop, dual boot Windows 10 & Linux Mint. Installed a new, higher capacity drive. Needed Grub Customizer to boot Windows 10 by default. Installed & it worked. Upgraded Linux Mint from 20.3 to 21, but now apt-get is fussing about memtest86+. Found others had this issue too based on this link:https://askubuntu.com/questions/1403778/upgrading-to-ubuntu-22-04-causes-libcrypto-errors-apt-dpkg-broken

I attempted option 2 (reinstall of Grub Customizer) since it seemed the less intense. Below is the output:

$ sudo apt-get install grub-customizer
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following packages will be REMOVED:
  memtest86+
The following NEW packages will be installed:
  grub-customizer
0 upgraded, 1 newly installed, 1 to remove and 0 not upgraded.
1 not fully installed or removed.
Need to get 0 B/1,292 kB of archives.
After this operation, 5,268 kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
(Reading database ... 357815 files and directories currently installed.)
Removing memtest86+ (5.31b+dfsg-4) ...
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/50_linuxmint.cfg'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
using custom appearance settings
Found background image: .background_cache.png

/etc/grub.d/bin/grubcfg_proxy: error while loading shared libraries: libcrypto.so.1.1: cannot open shared object file: No such file or directory
dpkg: error processing package memtest86+ (--remove):
 installed memtest86+ package post-removal script subprocess returned error exit status 127
dpkg: too many errors, stopping
Errors were encountered while processing:
 memtest86+
Processing was halted because there were too many errors.

E: Sub-process /usr/bin/dpkg returned an error code (1)

Please advise. Thank you.

[utube punk (utubepunk)]

I think I fixed my issue. I downloaded the libssl from Debian & installed it with dpkg.

sudo dpkg -i libssl1.1_1.1.1o-1_amd64.deb

A dpkg -l libssl1.1 confirmed it was installed. After confirmation, I was able to run a apt-get update and apt-get upgrade and I got the following output:

$ sudo apt-get update
Ign:1 http://packages.linuxmint.com vanessa InRelease
Hit:2 http://mirror.lstn.net/ubuntu jammy InRelease
Hit:3 http://packages.linuxmint.com vanessa Release
Hit:4 https://brave-browser-apt-release.s3.brave.com stable InRelease
Hit:5 http://security.ubuntu.com/ubuntu jammy-security InRelease
Get:6 http://mirror.lstn.net/ubuntu jammy-updates InRelease [114 kB]
Get:8 http://mirror.lstn.net/ubuntu jammy-backports InRelease [99.8 kB]
Hit:9 http://ppa.launchpad.net/atareao/atareao/ubuntu jammy InRelease
Hit:10 http://ppa.launchpad.net/danielrichter2007/grub-customizer/ubuntu jammy InRelease
Get:11 http://mirror.lstn.net/ubuntu jammy-backports/universe amd64 DEP-11 Metadata [12.4 kB]
Hit:12 http://ppa.launchpad.net/gerardpuig/ppa/ubuntu jammy InRelease
Hit:13 http://ppa.launchpad.net/solaar-unifying/stable/ubuntu jammy InRelease
Fetched 226 kB in 1s (156 kB/s)
Reading package lists... Done
W: http://ppa.launchpad.net/atareao/atareao/ubuntu/dists/jammy/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.
W: http://ppa.launchpad.net/danielrichter2007/grub-customizer/ubuntu/dists/jammy/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.
W: http://ppa.launchpad.net/gerardpuig/ppa/ubuntu/dists/jammy/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.
W: http://ppa.launchpad.net/solaar-unifying/stable/ubuntu/dists/jammy/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.

I'm hesitant whether or not I should install Grub Customizer. Please advise.