[Android Q&A, Help & Troubleshooting] segfaultcoder:
I couldn't get the partition information from the adb shell(even after rooting, running su and installing busybox to get fdisk), so I got the information by running in fastboot mode "fastboot getvar all":

(bootloader) max-download-size: 0x8000000
(bootloader) variant:
(bootloader) logical-block-size: 0x200
(bootloader) erase-block-size: 0x80000
(bootloader) hw-revision: ca01
(bootloader) battery-soc-ok: yes
(bootloader) battery-voltage: 4398mV
(bootloader) partition-size:sgpt: 4200
(bootloader) partition-type:sgpt: raw data
(bootloader) partition-size:flashinfo: 1000000
(bootloader) partition-type:flashinfo: raw data
(bootloader) partition-size:userdata: d7b6fbe00
(bootloader) partition-type:userdata: ext4
(bootloader) partition-size:md_udc: 1800000
(bootloader) partition-type:md_udc: ext4
(bootloader) partition-size:cache: 1b000000
(bootloader) partition-type:cache: ext4
(bootloader) partition-size:super: d5800000
(bootloader) partition-type:super: raw data
(bootloader) partition-size:teksunhw: 400000
(bootloader) partition-type:teksunhw: raw data
(bootloader) partition-size:tee2: 500000
(bootloader) partition-type:tee2: raw data
(bootloader) partition-size:tee1: 500000
(bootloader) partition-type:tee1: raw data
(bootloader) partition-size:dtbo: 800000
(bootloader) partition-type:dtbo: raw data
(bootloader) partition-size:logo: 800000
(bootloader) partition-type:logo: raw data
(bootloader) partition-size:boot: 2000000
(bootloader) partition-type:boot: raw data
(bootloader) partition-size:lk2: 100000
(bootloader) partition-type:lk2: raw data
(bootloader) partition-size:lk: 100000
(bootloader) partition-type:lk: raw data
(bootloader) partition-size:nvram: 4000000
(bootloader) partition-type:nvram: raw data
(bootloader) partition-size:gz2: 1000000
(bootloader) partition-type:gz2: raw data
(bootloader) partition-size:gz1: 1000000
(bootloader) partition-type:gz1: raw data
(bootloader) partition-size:sspm_2: 100000
(bootloader) partition-type:sspm_2: raw data
(bootloader) partition-size:sspm_1: 100000
(bootloader) partition-type:sspm_1: raw data
(bootloader) partition-size:spmfw: 100000
(bootloader) partition-type:spmfw: raw data
(bootloader) partition-size:md1dsp: 1000000
(bootloader) partition-type:md1dsp: raw data
(bootloader) partition-size:md1img: 4000000
(bootloader) partition-type:md1img: raw data
(bootloader) partition-size:proinfo: 300000
(bootloader) partition-type:proinfo: raw data
(bootloader) partition-size:sec1: 200000
(bootloader) partition-type:sec1: raw data
(bootloader) partition-size:persist: 3000000
(bootloader) partition-type:persist: ext4
(bootloader) partition-size:seccfg: 800000
(bootloader) partition-type:seccfg: raw data
(bootloader) partition-size:protect2: 978000
(bootloader) partition-type:protect2: ext4
(bootloader) partition-size:protect1: 800000
(bootloader) partition-type:protect1: ext4
(bootloader) partition-size:metadata: 2000000
(bootloader) partition-type:metadata: raw data
(bootloader) partition-size:nvdata: 4000000
(bootloader) partition-type:nvdata: ext4
(bootloader) partition-size:nvcfg: 2000000
(bootloader) partition-type:nvcfg: ext4
(bootloader) partition-size:vbmeta_vendor: 800000
(bootloader) partition-type:vbmeta_vendor: raw data
(bootloader) partition-size:vbmeta_system: 800000
(bootloader) partition-type:vbmeta_system: raw data
(bootloader) partition-size:vbmeta: 800000
(bootloader) partition-type:vbmeta: raw data
(bootloader) partition-size:frp: 100000
(bootloader) partition-type:frp: raw data
(bootloader) partition-size:expdb: 1400000
(bootloader) partition-type:expdb: raw data
(bootloader) partition-size:para: 80000
(bootloader) partition-type:para: raw data
(bootloader) partition-size:recovery: 2000000
(bootloader) partition-type:recovery: raw data
(bootloader) partition-size:boot_para: 100000
(bootloader) partition-type:boot_para: raw data
(bootloader) partition-size:pgpt: 8000
(bootloader) partition-type:pgpt: raw data
(bootloader) partition-size:preloader: 40000
(bootloader) partition-type:preloader: raw data
(...)

I'm going to put a link to the scatter file used for the SPFT, as you can get more specific partition information from there: https://www.mediafire.com/file/37pswh2hqw2r8x8/MT6763_Android_scatter.txt/file

Edit: I prefer using the modified TWRP.