That took a while,ok found it, it's a re-badged machine made by Tsinghua Tong Fang industries, it's their entry level machine [although it still has a good spec], it only has 1 M2 slot wired as NVMe, the BIOS/UEFI is pre-set for use with Linux so there should be no reason to change it, as it looks like the machine is fairly recent no point in looking for an upgrade either, so now we must look at the hardware, or method,
if you have changed the main drive check and make sure its the same type as original [pcie3 or pcie4 NVMe or if its an older one it may be SATA3 SSD] use a new or recent good quality pend-drive of 8 or 16 GB preferred make sure its clean and formatted fats 32 or x-fats, download your distribution from the developer site [our links are such] when downloaded CHECK the SHA sum to make sure its not corrupt [I dont know how stable power supplies are in the Baltics] write the downloaded ISO to the pendrive [not copy] try and use the primary USB slot [usually the one closest to the power supply] for installing and follow the basic installation routeen
ADDENDUM if at any time it has had windows installed make sure fast boot is dissabled.