You have that a bit mixed up. FLAC, or any *lossless* format, is intrinsically gapless and, unless you misconfigure your ripper, you will get an identical listening experience and of course bit identical audio data (including pregaps, gaps, silences).
MP3 is not designed to be lossless nor gapless. Some encoders and rippers can implement true gapless playback but many players still make a mess of it. Lossy formats *designed|* to play back gaplessly include Ogg Vorbis and Opus, but not MP3.
I have a large CD collection which includes many live performances, full ballets and operas, choral works and so on, which play gaplessly on CD (or any original medium). They have all been ripped and encoded to flac and play absolutely identically with any competent player, even as individual flacs. No need for cue+image rips or even m3u/pls playlist files.