[Google Pixel 2 XL Questions & Answers] NingaR:
I can not even boot to TWRP the only thing I can boot is the bootloader, booting TWRP or boot to stock recovery from bootloader results to a bootloop, even if I power down the device and plug the charger without doing anything the phone start to bootloop.

I have used both Powershell and CMD(as admin I still get the same result)

Microsoft Windows [Version 10.0.18362.356]
(c) 2019 Microsoft Corporation. All rights reserved.

C:\Windows\system32>cd C:\Users\Ninga\Desktop\A10

C:\Users\Ninga\Desktop\A10>fastboot devices
711KPRW0625214 fastboot

C:\Users\Ninga\Desktop\A10>flash-all.bat
Sending 'bootloader_b' (36352 KB) OKAY [ 0.803s]
Writing 'bootloader_b' OKAY [ 0.276s]
Finished. Total time: 1.241s
Rebooting into bootloader OKAY [ 0.000s]
Finished. Total time: 0.004s
Sending 'radio_b' (60388 KB) OKAY [ 1.332s]
Writing 'radio_b' OKAY [ 0.819s]
Finished. Total time: 2.400s
Rebooting into bootloader OKAY [ 0.000s]
Finished. Total time: 0.005s
--------------------------------------------
Bootloader Version...: TMZ30h
Baseband Version.....: g8998-00012-1905270706
Serial Number........: 711KPRW0625214
--------------------------------------------
extracting android-info.txt (0 MB) to RAM...
Checking 'product' OKAY [ 0.000s]
Checking 'version-bootloader' OKAY [ 0.000s]
Checking 'version-baseband' OKAY [ 0.001s]
Setting current slot to 'b' OKAY [ 0.009s]
extracting boot.img (40 MB) to disk... took 0.240s
archive does not contain 'boot.sig'
Sending 'boot_b' (40960 KB) OKAY [ 0.898s]
Writing 'boot_b' OKAY [ 0.535s]
extracting dtbo.img (8 MB) to disk... took 0.051s
archive does not contain 'dtbo.sig'
Sending 'dtbo_b' (8192 KB) OKAY [ 0.180s]
Writing 'dtbo_b' OKAY [ 0.103s]
archive does not contain 'dt.img'
archive does not contain 'recovery.img'
extracting vbmeta.img (0 MB) to disk... took 0.001s
archive does not contain 'vbmeta.sig'
Sending 'vbmeta_b' (4 KB) OKAY [ 0.001s]
Writing 'vbmeta_b' OKAY [ 0.003s]
archive does not contain 'vbmeta_system.img'
archive does not contain 'super_empty.img'
archive does not contain 'boot_other.img'
archive does not contain 'odm.img'
archive does not contain 'product.img'
extracting system.img (2374 MB) to disk... took 63.201s
archive does not contain 'system.sig'
Sending sparse 'system_b' 1/5 (524284 KB) OKAY [ 12.061s]
Writing 'system_b' OKAY [ 2.228s]
Sending sparse 'system_b' 2/5 (524284 KB) OKAY [ 12.036s]
Writing 'system_b' OKAY [ 2.231s]
Sending sparse 'system_b' 3/5 (524284 KB) OKAY [ 12.034s]
Writing 'system_b' OKAY [ 2.218s]
Sending sparse 'system_b' 4/5 (524284 KB) OKAY [ 12.271s]
Writing 'system_b' OKAY [ 2.237s]
Sending sparse 'system_b' 5/5 (334556 KB) OKAY [ 8.023s]
Writing 'system_b' OKAY [ 1.411s]
archive does not contain 'system_ext.img'
extracting system_other.img (304 MB) to disk... took 5.676s
archive does not contain 'system.sig'
Sending 'system_a' (311784 KB) OKAY [ 6.852s]
Writing 'system_a' OKAY [ 1.315s]
extracting vendor.img (340 MB) to disk... took 4.352s
archive does not contain 'vendor.sig'
Sending 'vendor_b' (348532 KB) OKAY [ 7.676s]
Writing 'vendor_b' OKAY [ 1.479s]
archive does not contain 'vendor_other.img'
Erasing 'userdata' OKAY [ 0.620s]
mke2fs 1.44.4 (18-Aug-2018)
Creating filesystem with 29518843 4k blocks and 7380992 inodes
Filesystem UUID: e5ba5316-e02a-11e9-92a6-a7920be70672
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872

Allocating group tables: done
Writing inode tables: done
Creating journal (131072 blocks): done
Writing superblocks and filesystem accounting information: done

Sending 'userdata' (4672 KB) OKAY [ 0.102s]
Writing 'userdata' OKAY [ 0.035s]
Rebooting OKAY [ 0.000s]
Finished. Total time: 171.544s
Press any key to exit...

I don't know much but what does this code means?

archive does not contain 'vbmeta_system.img'
archive does not contain 'super_empty.img'
archive does not contain 'boot_other.img'
archive does not contain 'odm.img'
archive does not contain 'product.img'

At this point I would try anything possible as I was 99% giving up and prepared to buy a new phone, but if there is even a 0.05% chance of something to work I would try that.

Thanks