Try to update your video drivers, should helpBear in the Night - I'm running Linux Mint 20 and I downloaded the PC version from both MEGA and GDRIVE. Neither one starts. It looks like it wants to start full screen then shuts down instantly without any error. In the log file, it stops at "windowed mode".
Code:Sat Dec 19 11:49:48 2020 Linux-5.4.0-58-generic-x86_64-with-debian-bullseye-sid Ren'Py 7.3.5.606 Bootstrap to the start of init.init took 0.09s Early init took 0.00s Loader init took 0.02s Loading error handling took 0.03s Loading script took 0.20s Loading save slot metadata. took 0.00s Loading persistent took 0.00s Importing _renpysteam: ImportError('No module named _renpysteam',) Set script version to: (7, 3, 5) Running init code took 0.11s Loading analysis data took 0.04s Analyze and compile ATL took 0.01s Index archives took 0.00s Dump and make backups. took 0.00s Cleaning cache took 0.00s Making clean stores took 0.00s Initial gc. took 0.03s DPI scale factor: 1.000000 Creating interface object took 0.45s Cleaning stores took 0.00s Init translation took 0.07s Build styles took 0.01s Load screen analysis took 0.04s Analyze screens took 0.00s Save screen analysis took 0.00s Prepare screens took 0.16s Save pyanalysis. took 0.00s Save bytecode. took 0.00s Running _start took 0.00s Performance test: Interface start took 0.05s primary display bounds: (0, 0, 1600, 900) swap interval: 1 frames Windowed mode.